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Stockholders' Equity - Additional Information (Detail) (USD $)
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1 Months Ended | 2 Months Ended | 3 Months Ended | 1 Months Ended | 2 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | ||||||||||||
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Oct. 29, 2012
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Aug. 31, 2012
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Sep. 30, 2012
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Sep. 30, 2011
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Jun. 30, 2012
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Jun. 14, 2012
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Jun. 30, 2011
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Aug. 31, 2011
Common Stock [Member]
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Aug. 31, 2012
Common Stock [Member]
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Sep. 30, 2012
Common Stock [Member]
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Aug. 31, 2011
Warrant [Member]
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Sep. 30, 2012
Warrant [Member]
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Jun. 30, 2010
Restatement Adjustment [Member]
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Sep. 30, 2011
Selling, General and Administrative Expenses [Member]
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Sep. 30, 2011
Research and Development Expense [Member]
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Jun. 14, 2012
Stock Option Plan 2010 [Member]
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Jun. 30, 2012
June 2012 Warrants [Member]
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Sep. 30, 2012
June 2012 Warrants [Member]
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Jun. 30, 2011
June 2012 Warrants [Member]
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Jun. 14, 2012
Advisory Agreement [Member]
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Jun. 14, 2012
Advisory Agreement [Member]
Restricted Stock
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Jun. 30, 2012
Private Placement [Member]
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Sep. 30, 2012
Private Placement [Member]
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Sep. 30, 2012
Deferred Compensation, Share-Based Payments [Member]
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Oct. 30, 2012
Subsequent Event [Member]
Private Placement [Member]
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Jun. 14, 2012
Flux Power Inc [Member]
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| Stockholders Equity Note Disclosure [Line Items] | ||||||||||||||||||||||||||
| Common stock, authorized | 145,000,000 | 145,000,000 | ||||||||||||||||||||||||
| Common stock, par value | $ 0.001 | $ 0.001 | ||||||||||||||||||||||||
| Preferred stock, authorized | 5,000,000 | 5,000,000 | ||||||||||||||||||||||||
| Preferred stock, par value | $ 0.001 | $ 0.001 | ||||||||||||||||||||||||
| Preferred stock, issued | 0 | 0 | ||||||||||||||||||||||||
| Preferred stock, outstanding | 0 | 0 | ||||||||||||||||||||||||
| Shares issued as part of Flux Power Inc. acquisition | 37,714,514 | |||||||||||||||||||||||||
| Shares of common stocks issued | 100,000 | 2,293,567 | 603,594 | 120,719 | 2,813,000 | 100,000 | 1,207,185 | 241,437 | ||||||||||||||||||
| Warrants issued | 458,732 | 562,551 | 2,859,060 | 48,287 | ||||||||||||||||||||||
| Net proceeds from issuance of common stock and warrants | $ 4,000 | $ 901,000 | $ 0 | $ 1,126,000 | ||||||||||||||||||||||
| Advisory service agreement period | 24 months | |||||||||||||||||||||||||
| Warrant to purchase restricted shares of common stock | 1,837,777 | 1,837,777 | ||||||||||||||||||||||||
| Warrant term | 5 years | 5 years | 5 years | |||||||||||||||||||||||
| Common stock initial exercise price | $ 0.41 | $ 0.41 | $ 0.41 | |||||||||||||||||||||||
| Shares of common stock outstanding under the option plan | 4,536,949 | 4,536,949 | 2,097,841 | 2,097,841 | 1,535,500 | 710,000 | ||||||||||||||||||||
| Allocated share-based compensation expense | 1,000 | 300 | 700 | |||||||||||||||||||||||
| Accredated Investor Unit | 250,000 | 2,000,000 | 500,000 | |||||||||||||||||||||||
| Common Stock Unit | 603,594 | |||||||||||||||||||||||||
| Warrant Units | 120,719 | |||||||||||||||||||||||||
| Prepaid Advisory Fees | 3,258,000 | |||||||||||||||||||||||||
| Amortization of prepaid advisory fees | 407,000 | 0 | ||||||||||||||||||||||||
| Warrants exercise price | $ 0.41 | $ 0.41 | $ 0.41 | |||||||||||||||||||||||
| Proceeds from Issuance or Sale of Equity | 672,000 | 1,690,063 | 231,000 | 338,013 | ||||||||||||||||||||||
| Stock Issued During Period Shares Stock Options Exercised | 0 | 2,000,000 | ||||||||||||||||||||||||
| Stock or Unit Option Plan Expense | 406,000 | |||||||||||||||||||||||||
| Stock Options Expense Expected To Be Recognized | 5 years 9 months 28 days | |||||||||||||||||||||||||
| Stock-based compensation | 45,000 | 1,000 | ||||||||||||||||||||||||
| Selling and administrative expenses | 714,000 | 331,000 | 41,000 | |||||||||||||||||||||||
| Research and development | 290,000 | 79,000 | 4,000 | |||||||||||||||||||||||
| Derivative Asset, Fair Value, Net | $ 2,783,000 | |||||||||||||||||||||||||