Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 106,344	$ 103,762
Accounts receivable, less allowance for doubtful accounts of $34 and $59, respectively	2,212	3,843
Inventories - finished goods, net	21,451	17,884
Prepaid expenses and other current assets	2,613	3,529
Total current assets	132,620	129,018
Noncurrent assets:
Property and equipment, net	25,469	25,445
Intangible assets	860	860
Total noncurrent assets	26,329	26,305
Total assets	158,949	155,323
Current liabilities:
Accounts payable	16,058	19,658
Accrued expenses and other current liabilities	4,486	4,214
Income taxes payable	618	471
Total current liabilities	21,162	24,343
Deferred tax liabilities	1,378	970
Total liabilities	22,540	25,313
Commitments and contingencies
Shareholders' equity:
Preferred stock, $.001 par value, 5,000 shares authorized; 3 convertible shares issued and outstanding with a liquidation preference of $4 per share	9	9
Common stock, $.001 par value, 40,000 shares authorized; 20,272 and 20,166 shares issued and outstanding, respectively	20	20
Additional paid-in capital	5,317	3,804
Retained earnings	131,063	126,177
Total shareholders' equity	136,409	130,010
Total liabilities and shareholders' equity	$ 158,949	$ 155,323