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Income Taxes - Deferred Income Taxes (Details) - USD ($)	Mar. 31, 2025	Mar. 31, 2024
Assets
Allowance for bad debts	$ 48,000	$ 44,000
Customer allowances earned	3,794,000	4,706,000
Allowance for stock adjustment returns	3,344,000	3,620,000
Inventory adjustments	8,497,000	7,419,000
Intangibles, net	729,000	852,000
Stock options	2,561,000	2,723,000
Operating lease liabilities	19,333,000	21,251,000
Estimate for returns	30,341,000	29,942,000
Accrued compensation	2,585,000	2,600,000
Net operating losses	3,426,000	4,670,000
Tax credits	2,857,000	2,054,000
Capitalized research credits	1,147,000	1,158,000
Plant and equipment, net	1,460,000	1,010,000
Other	4,639,000	6,588,000
Total deferred tax assets	84,761,000	88,637,000
Liabilities
Contract assets	(9,020,000)	(10,265,000)
Operating lease assets	(16,848,000)	(23,845,000)
Other	(2,453,000)	(6,663,000)
Total deferred tax liabilities	(28,321,000)	(40,773,000)
Less: valuation allowance	(52,233,000)	(45,399,000)
Total deferred taxes	$ 4,207,000	$ 2,465,000

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