Quantum Corporation Quarterly report pursuant to Section 13 or 15(d)

COMMON STOCK - Narrative (Details) - $ / shares	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2020	Jun. 16, 2020
Senior Secured Term Loan
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Minimum registrable securities to request a S-1 (in percent)					40.00%
June 2020 Warrants
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Warrant exercise price (in dollars per share)	$ 2.77		$ 2.79
June 2023 Warrants
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Warrant exercise price (in dollars per share)	$ 1.00
Advisor \| June 2020 Warrants
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Additional warrants issues (in shares)				50,000
Warrant exercise price (in dollars per share)				$ 3.00
Advisor \| June 2023 Warrants
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Additional warrants issues (in shares)		50,000
Warrant exercise price (in dollars per share)		$ 1.00