Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2025	Mar. 31, 2025
Current assets:
Cash and cash equivalents	$ 17,511,000	$ 9,429,000
Short-term investments	2,060,000	1,881,000
Accounts receivable — net	80,730,000	91,064,000
Inventory — net	398,980,000	359,669,000
Contract assets	33,327,000	29,606,000
Prepaid expenses and other current assets	25,153,000	19,822,000
Total current assets	557,761,000	511,471,000
Plant and equipment — net	30,681,000	31,990,000
Operating lease assets	65,852,000	66,603,000
Long-term deferred income taxes	5,850,000	4,569,000
Long-term contract assets	325,044,000	336,268,000
Goodwill and intangible assets — net	3,527,000	3,757,000
Other assets	2,595,000	2,978,000
TOTAL ASSETS	991,310,000	957,636,000
Current liabilities:
Accounts payable and accrued liabilities	187,829,000	172,117,000
Customer finished goods returns accrual	37,856,000	34,411,000
Contract liabilities	60,323,000	38,158,000
Revolving loan	88,010,000	90,787,000
Other current liabilities	7,411,000	5,570,000
Operating lease liabilities	9,357,000	9,982,000
Total current liabilities	390,786,000	351,025,000
Convertible notes, related party	$ 39,890,000	$ 35,207,000
Notes Payable, Noncurrent, Related Party, Type [Extensible Enumeration]	Related Party [Member]	Related Party [Member]
Long-term contract liabilities	$ 234,789,000	$ 241,404,000
Long-term deferred income taxes	563,000	362,000
Long-term operating lease liabilities	58,973,000	65,308,000
Other liabilities	7,762,000	6,631,000
Total liabilities	732,763,000	699,937,000
Commitments and contingencies
Shareholders' equity:
Preferred stock	0	0
Common stock; par value $.01 per share, 50,000,000 shares authorized;19,208,710 and 19,435,706 shares issued and outstanding at December 31, 2025 and March 31, 2025, respectively	192,000	194,000
Additional paid-in capital	228,388,000	234,413,000
Retained earnings	22,703,000	20,033,000
Accumulated other comprehensive income	7,264,000	3,059,000
Total shareholders' equity	258,547,000	257,699,000
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	991,310,000	957,636,000
Series A Junior Participating Preferred Stock [Member]
Shareholders' equity:
Preferred stock	$ 0	$ 0