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           SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) 
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        12 Months Ended | |
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           Jun. 30, 2013 
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| Accounting Policies [Abstract] | ||
| Basis Of Presentation and Consolidation |                Basis of Presentation and  Consolidation     The Company’s consolidated financial  statements have been prepared on a going concern basis in  accordance with accounting principles generally accepted in the  United States of America (“GAAP”). This contemplates  the realization of assets and satisfaction of liabilities in the  ordinary course of business (see note 2).     The consolidated financial statements have been  prepared in accordance with accounting principles generally  accepted in the United States of America and include the Flux Power  Holdings, Inc. and its wholly-owned subsidiary Flux Power Inc.  after elimination of all intercompany accounts and  transactions.    | 
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| Subsequent Events |                  Subsequent Events
     Management has evaluated events subsequent to June  30, 2013 through the date the accompanying consolidated financial  statements were filed with the Securities and Exchange Commission  for transactions and other events that may require adjustment of  and/or disclosure in such financial statements.    | 
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| Reclassifications |                Reclassifications     Certain prior year amounts have been reclassified  to conform to the current year presentation for comparative  purposes.    | 
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| Use of Estimates in Financial Statement Preparation |                Use of Estimates in Financial  Statement Preparation     The preparation of financial statements in  conformity with GAAP requires management to make estimates and  assumptions that affect the reported amounts of assets,  liabilities, revenues and expenses, as well as certain financial  statement disclosures. Significant estimates include valuations of  equity instruments and deferred tax assets. While management  believes that the estimates and assumptions used in the preparation  of the financial statements are appropriate, actual results could  differ from these estimates.    | 
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| Cash and Cash Equivalents |                Cash and Cash  Equivalents     As of June 30, 2013, cash totaled approximately  $20,000 and consists of funds  held in a non-interest bearing bank deposit account. The Company  considers all highly liquid short term investments with maturities  of less than three months when acquired to be cash equivalents. The  Company had no other cash equivalents at June 30, 2013 and  2012.    | 
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| Fair Values of Financial Instruments |                Fair Values of Financial  Instruments     The carrying amount of our accounts payable,  accounts receivable, accrued liabilities, notes payable and line of  credit, and warrant derivative liability approximates their  estimated fair values due to the short-term maturities of those  financial instruments. The carrying amount of notes payable  approximates their fair value due to the short maturity of the  notes and as the interest approximates current market interest  rates for the similar instruments. Derivative liabilities recorded  in connection with warrants are reported at their estimated fair  value, with changes in fair value being reported in results of  operations (see Note 8).        Management has concluded that it is not practical  to determine the estimated fair value of amounts due to related  parties because the transactions cannot be assumed to have  consummated at arm’s length, the terms are not deemed to be  market terms, there are no quoted values available for these  instruments, and an independent valuation would not be practical  due to the lack of data regarding similar instruments, if any, and  the associated potential costs.     Except for derivative liabilities, we do not have  any other assets or liabilities that are measured at fair value on  a recurring basis and, during the fiscal years ended June 30, 2013  and 2012, did not have any other assets or liabilities that were  measured at fair value on a nonrecurring basis.          | 
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| Accounts Receivable and Customer Deposits |                Accounts Receivable and Customer  Deposits     Accounts receivable are carried at their estimated  collectible amounts. The Company may require advance deposits from  its customers prior to shipment of the ordered products. The  Company has not experienced collection issues related to its  accounts receivable, and has not recorded an allowance for doubtful  accounts at June 30, 2013 or June 30, 2012.    | 
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| Inventories |                  Inventories
     Inventories consist primarily of battery  management systems and the related subcomponents, and are stated at  the lower of cost (first-in, first-out) or market. The Company  evaluates inventories to determine if write-downs are necessary due  to obsolescence or if the inventory levels are in excess of  anticipated demand at market value based on consideration of  historical sales and product development plans. The Company  recorded an adjustment related to obsolete inventory in the amount  of approximately $77,000 and  $26,000 during the fiscal  years ended June 30, 2013 and 2012, respectively.    | 
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| Property, Plant and Equipment |                  Property, Plant and Equipment
     Property, plant and equipment, net of accumulated  depreciation are stated at cost, net of accumulated depreciation.  Depreciation and amortization are provided using the straight-line  method over the estimated useful lives, of the related assets  ranging from three to ten years, or, in the case of leasehold  improvements, over the lesser of the useful life of the related  asset or the lease term.    | 
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| Stock-based Compensation |                   Stock-based Compensation
     Pursuant to the provisions of the Financial  Accounting Standards Board (“FASB”) Accounting  Standards Codification (“ASC”) 718-10,   CompensationStock Compensation, which establishes  accounting for equity instruments exchanged for employee service,  we utilize the Black-Scholes option pricing model to estimate the  fair value of employee stock option awards at the date of grant,  which requires the input of highly subjective assumptions,  including expected volatility and expected life. Changes in these  inputs and assumptions can materially affect the measure of  estimated fair value of our share-based compensation. These  assumptions are subjective and generally require significant  analysis and judgment to develop. When estimating fair value, some  of the assumptions will be based on, or determined from, external  data and other assumptions may be derived from our historical  experience with stock-based payment arrangements. The appropriate  weight to place on historical experience is a matter of judgment,  based on relevant facts and circumstances.     Common stock or equity instruments such as  warrants issued for services to non-employees are valued at their  estimated fair value at the measurement date (the date when a firm  commitment for performance of the services is reached, typically  the date of issuance, or when performance is complete). If the  total value exceeds the par value of the stock issued, the value in  excess of the par value is added to the additional paid-in-capital  account.    | 
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| Revenue Recognition |                Revenue  Recognition     The Company recognizes revenue when persuasive  evidence of an arrangement exists, delivery has occurred, price is  fixed or determinable, and collectability of the selling price is  reasonably assured. Delivery occurs when risk of loss is passed to  the customer, as specified by the terms of the applicable customer  agreements. When a right of return exists, contractually or  implied, the Company recognizes revenue on the sell-through method.  Under this method, revenue is not recognized upon delivery of the  inventory components. Instead, the Company records deferred revenue  upon delivery and recognize revenue when the inventory components  are sold through to the end user.     Deferred revenue at June 30, 2012 related to one  customer of approximately $480,000 representing units not yet sold  through by our customer and was recognized in the Company’s  second quarter of fiscal 2013 (as the right of return was waived).  The related product costs of $429,000 were recorded as costs of sales.  As of June 30, 2013 the Company does not have any deferred  revenue.    | 
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| Sales Returns and Allowances |                Sales Returns and  Allowances     The Company evaluates its exposure to sales  returns and allowances based on historical experience. The Company  has not experienced returns during the fiscal years ended June 30,  2013 and 2012, and accordingly, the Company did not record sales  returns and allowance.    | 
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| Product Warranties |                  Product Warranties
     The Company evaluates its exposure to product  warranty obligations based on historical experience. Our products  are warrantied for two years unless modified by a separate  agreement. During the fiscal years ended June 30, 2013 and 2012 the  Company recorded a warranty liability of approximately $11,000 and $12,000, respectively, and is included in  accrued expenses on the Company’s balance sheet.    | 
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| Shipping and Handling Costs |                  Shipping and Handling Costs
     The Company records shipping and handling costs  charged to customers as revenue and shipping and handling costs to  cost of sales as incurred.    | 
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| Impairment of Long-lived Assets |                Impairment of Long-lived  Assets     In accordance with authoritative guidance for the  impairment or disposal of long-lived assets, if indicators of  impairment exist, the Company assesses the recoverability of the  affected long-lived assets by determining whether the carrying  value of such assets can be recovered through the undiscounted  future operating cash flows.     If impairment is indicated, the Company measures  the amount of such impairment by comparing the carrying value of  the asset to the present value of the expected future cash flows  associated with the use of the asset. The Company believes future  cash flows expected to be received from its long-lived assets held  in use will exceed the assets’ carrying values, and  accordingly the Company has not recognized any impairment losses  during the fiscal years ended June 30, 2013 and 2012.    | 
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| Research and Development |                  Research and Development
     The Company is actively engaged in new product  development efforts. Research and development cost relating to  possible future products are expensed as incurred.    | 
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| Income Taxes |                Income Taxes     The Company follows FASB ASC Topic No, 740,   Income Taxes. Deferred tax assets or liabilities are recorded  to reflect the future tax consequences of temporary differences  between the financial reporting basis of assets and liabilities and  their tax basis at each year-end. These amounts are adjusted, as  appropriate, to reflect enacted changes in tax rates expected to be  in effect when the temporary differences reverse.     The Company records deferred tax assets and  liabilities based on the differences between the financial  statement and tax bases of assets and liabilities and on operating  loss carry forwards using enacted tax rates in effect for the year  in which the differences are expected to reverse. A valuation  allowance is provided when it is more likely than not that some  portion or all of a deferred tax asset will not be realized.     We follow the provisions of FASB ASC Topic No.740  relating to uncertain tax provisions and have commenced analyzing  filing positions in all of the federal and state jurisdictions  where the Company is required to file income tax returns, as well  as all open tax years in these jurisdictions. As a result of  adoption, no additional tax liabilities have been recorded. There  are no unrecognized tax benefits as of June 30, 2013 or June 30,  2012.    | 
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| Net (Loss) Per Common Share |                  Net Income (Loss) Per Common Share
     The Company calculates basic earnings (loss) per  common share by dividing net earnings or loss by the weighted  average number of common shares outstanding during the periods.  Diluted earnings (loss) per common share include the impact from  all dilutive potential common shares relating to outstanding  convertible securities.     For the year ended June 30, 2013, basic and  diluted weighted-average common shares outstanding were 46,592,334  and 50,553,184, respectively. The potentially dilutive common  shares outstanding at June 30, 2013, which include common shares  underlying outstanding stock options and warrants, included in the  diluted weighted-average calculation were approximately 3,664,000.     For the year ended June 30, 2012, basic and  diluted weighted-average common shares outstanding were 36,904,769. The Company incurred a  net loss for the twelve months ended June 30, 2012, and therefore,  basic and diluted earnings per share for those periods are the same  because the inclusion of all potential common equivalent shares  would be anti-dilutive. The potentially dilutive common shares  outstanding at June 30, 2012, which include common shares  underlying outstanding stock options and warrants, were 2,386,622.    | 
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| Derivative Financial Instruments |                Derivative Financial  Instruments     The Company does not use derivative instruments to  hedge exposures to cash flow, market or foreign currency  risk.     We evaluate free-standing derivative instruments  (or embedded derivatives) to properly classify such instruments  within equity or as liabilities in our financial statements. The  classification of a derivative instrument is reassessed at each  reporting date. If the classification changes as a result of events  during a reporting period, the instrument is reclassified as of the  date of the event that caused the reclassification. There is no  limit on the number of times a contract may be reclassified.     Instruments classified as derivative liabilities  are recorded initially at their estimated fair value and are  re-measured each reporting period (or upon reclassification) and  the change in fair value is recorded on our consolidated statement  of operations in other (income) expense.     The Company follows Financial Accounting Standards  Board (“FASB”) Accounting Standards Codification  (“ASC”) Topic No. 815, Derivatives and Hedging  to classify and value warrant liabilities. Warrants classified as  derivative liabilities are recorded at their fair values at the  issuance date and are revalued at each subsequent reporting date,  using a Monte Carlo simulation (“MCS”). A MCS model  uses a simulation technique to generate multiple random price paths  for the stock price to simulate many possible future outcomes,  which are then discounted at the risk-free rate. These simulated  paths are then averaged to determine the fair value of the warrants  (see Note 8).    | 
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| New Accounting Standards |                  New Accounting Standards
      The Company reviews new accounting standards  as issued. There have been no recently issued accounting standards,  or changes in accounting standards, that have had or are expected  to have, a material impact on our consolidated financial  statements.        |