Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2022	Mar. 31, 2022
Current assets:
Cash and cash equivalents	$ 12,579,000	$ 23,016,000
Short-term investments	2,169,000	2,202,000
Accounts receivable - net	75,533,000	85,075,000
Inventory	390,574,000	385,504,000
Contract assets	29,072,000	27,500,000
Prepaid expenses and other current assets	26,798,000	13,688,000
Total current assets	536,725,000	536,985,000
Plant and equipment - net	46,693,000	51,062,000
Operating lease assets	85,407,000	81,997,000
Long-term deferred income taxes	26,868,000	26,982,000
Long-term contract assets	314,035,000	310,255,000
Goodwill and intangible assets - net	5,708,000	7,004,000
Other assets	1,138,000	1,413,000
TOTAL ASSETS	1,016,574,000	1,015,698,000
Current liabilities:
Accounts payable and accrued liabilities	144,851,000	168,435,000
Customer finished goods returns accrual	33,043,000	38,086,000
Contract liabilities	44,512,000	42,496,000
Revolving loan	175,000,000	155,000,000
Other current liabilities	4,430,000	11,930,000
Operating lease liabilities	8,329,000	6,788,000
Current portion of term loan	3,668,000	3,670,000
Total current liabilities	413,833,000	426,405,000
Term loan, less current portion	10,233,000	13,024,000
Long-term contract liabilities	185,859,000	172,764,000
Long-term deferred income taxes	121,000	126,000
Long-term operating lease liabilities	81,512,000	80,803,000
Other liabilities	10,027,000	7,313,000
Total liabilities	701,585,000	700,435,000
Commitments and contingencies
Shareholders' equity:
Preferred stock	0	0
Common stock; par value $.01 per share, 50,000,000 shares authorized; 19,490,859 and 19,104,751 shares issued and outstanding at December 31, 2022 and March 31, 2022, respectively	195,000	191,000
Additional paid-in capital	230,630,000	227,184,000
Retained earnings	87,288,000	92,954,000
Accumulated other comprehensive loss	(3,124,000)	(5,066,000)
Total shareholders' equity	314,989,000	315,263,000
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,016,574,000	1,015,698,000
Series A Junior Participating Preferred Stock [Member]
Shareholders' equity:
Preferred stock	$ 0	$ 0