CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Mar. 31, 2012
Current assets:
Cash and cash equivalents	$ 47,041	$ 46,801
Short term investments - available for sale	15,425	10,347
Accounts receivable, less allowance for doubtful accounts of $6 and $5, respectively	1,888	1,572
Inventories - finished goods	19,590	26,217
Prepaid expenses and other current assets	1,047	1,241
Deferred tax assets	852	1,230
Prepaid income taxes	349	199
Total current assets	86,192	87,607
Property and equipment, net	2,311	2,597
Intangible asset	860	860
Total assets	89,363	91,064
Current liabilities:
Accounts payable	6,956	6,619
Accrued expenses and other current liabilities	2,067	2,772
Total current liabilities	9,023	9,391
Deferred tax liabilities	227	492
Total liabilities	9,250	9,883
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; 20,007 and 20,338 shares issued and outstanding, respectively	20	20
Retained earnings	80,015	81,108
Accumulated other comprehensive gain	69	44
Total shareholders' equity	80,113	81,181
Total liabilities and shareholders' equity	$ 89,363	$ 91,064