SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Movement in Valuation Allowances and Reserves [Roll Forward]
Expected merchandise returns		$ 6,500	$ 5,300	$ 5,300
Allowance for Sales Returns [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	[1]	852	899	752
Charged to Costs and Expenses	[1]	2,678	1,305	2,579
Deductions/Write-Offs	[1]	(2,492)	(1,352)	(2,432)
Balance at End of Period	[1]	1,038	852	899
Reserve for Credit Losses [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		2,614	2,664	5,392
Charged to Costs and Expenses		1,004	335	462
Deductions/Write-Offs		(429)	(385)	(3,190)
Balance at End of Period		3,189	2,614	2,664
Valuation for Deferred Taxes [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		1,065	1,335	1,270
Charged to Costs and Expenses		320	(270)	65
Deductions/Write-Offs		0	0	0
Balance at End of Period		$ 1,385	$ 1,065	$ 1,335

[1] These amounts represent the gross profit effect of sales returns during the respective years. Expected merchandise returns after year-end for sales made before year-end were $6.5 million, $5.3 million, and $5.3 million as of March 31, 2020, 2019, and 2018, respectively.