Annual report [Section 13 and 15(d), not S-K Item 405]

Cover

v3.26.1
Cover - USD ($)
 12 Months Ended
Jun. 30, 2026
Aug. 14, 2026
Dec. 31, 2025
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Jun. 30, 2026    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2026    
Current Fiscal Year End Date --06-30    
Entity File Number 001-31543    
Entity Registrant Name FLUX POWER HOLDINGS, INC.    
Entity Central Index Key 0001083743    
Entity Tax Identification Number 92-3550089    
Entity Incorporation, State or Country Code NV    
Entity Address, Address Line One 2685 S. Melrose Drive    
Entity Address, City or Town Vista    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92081    
City Area Code 877    
Local Phone Number 505-3589    
Title of 12(b) Security Common Stock, par value $0.001 per share    
Trading Symbol FLUX    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 20,991,000
Entity Common Stock, Shares Outstanding   21,621,642  
Documents incorporated by reference None    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 200    
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of Flux Power Holdings, Inc. (the “Company”) as of June 30, 2026 and 2025, and the related statements of operations, stockholders’ equity (deficit), and cash flows for each of the two years in the period ended June 30, 2026, and the related notes (collectively, the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of June 30, 2026 and 2025, and the results of its operations and its cash flows for each of the two years in the period ended June 30, 2026, in conformity with accounting principles generally accepted in the United States of America.    
Auditor Name Haskell & White LLP    
Auditor Location Irvine, California