Quantum Corporation Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

BALANCE SHEET INFORMATION - Narrative (Details)

BALANCE SHEET INFORMATION - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2025
Balance Sheet Related Disclosures [Abstract]
Intangible assets amortization expense	$ 100,000	$ 300,000	$ 500,000	$ 900,000
Goodwill	$ 12,969,000		12,969,000		$ 12,969,000
Goodwill impairment loss			$ 0		$ 0

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

+ References + Details