Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2021	Mar. 31, 2021
Current assets:
Cash and cash equivalents	$ 7,769,000	$ 15,523,000
Short-term investments	2,212,000	1,652,000
Accounts receivable - net	57,691,000	63,122,000
Inventory	358,738,000	302,913,000
Contract assets	26,609,000	26,940,000
Prepaid expenses and other current assets	11,743,000	12,706,000
Total current assets	464,762,000	422,856,000
Plant and equipment - net	50,636,000	53,854,000
Operating lease assets	82,029,000	71,513,000
Long-term deferred income taxes	20,255,000	19,381,000
Long-term contract assets	311,756,000	270,213,000
Goodwill and intangible assets - net	7,341,000	8,534,000
Other assets	1,501,000	1,531,000
TOTAL ASSETS	938,280,000	847,882,000
Current liabilities:
Accounts payable and accrued liabilities	149,314,000	152,735,000
Customer finished goods returns accrual	37,333,000	31,524,000
Contract liabilities	40,190,000	41,072,000
Revolving loan	113,000,000	84,000,000
Other current liabilities	6,708,000	6,683,000
Operating lease liabilities	6,444,000	6,439,000
Current portion of term loan	3,670,000	3,678,000
Total current liabilities	356,659,000	326,131,000
Term loan, less current portion	13,951,000	16,786,000
Long-term contract liabilities	165,599,000	125,223,000
Long-term deferred income taxes	75,000	73,000
Long-term operating lease liabilities	82,287,000	70,551,000
Other liabilities	6,589,000	7,973,000
Total liabilities	625,160,000	546,737,000
Commitments and contingencies
Shareholders' equity:
Preferred stock	0	0
Common stock; par value $.01 per share, 50,000,000 shares authorized; 19,100,298 and 19,045,386 shares issued and outstanding at December 31, 2021 and March 31, 2021, respectively	191,000	190,000
Additional paid-in capital	225,319,000	223,058,000
Retained earnings	93,276,000	85,593,000
Accumulated other comprehensive loss	(5,666,000)	(7,696,000)
Total shareholders' equity	313,120,000	301,145,000
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	938,280,000	847,882,000
Series A Junior Participating Preferred Stock [Member]
Shareholders' equity:
Preferred stock	$ 0	$ 0