CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Mar. 31, 2014
Current assets:
Cash and cash equivalents	$ 34,579	$ 18,305
Short term investments - available for sale	15,583	15,539
Accounts receivable, less allowance for doubtful accounts of $8 and $7, respectively	1,957	1,761
Inventories - finished goods	20,535	35,727
Prepaid expenses and other current assets	1,924	1,761
Deferred tax assets	716	1,062
Prepaid income taxes	1,870	54
Total current assets	77,164	74,209
Noncurrent assets:
Prepaid expenses		1,996
Property and equipment, net	1,361	1,310
Intangible assets	860	860
Deferred tax assets	44
Total assets	79,429	78,375
Current liabilities:
Accounts payable	5,248	5,768
Accrued expenses and other current liabilities	2,334	2,325
Total current liabilities	7,582	8,093
Deferred tax liabilities		65
Total liabilities	7,582	8,158
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; 20,268 and 20,190 shares issued and outstanding, respectively	20	20
Additional paid-in capital	2,370	1,578
Retained earnings	69,478	68,647
Accumulated other comprehensive loss	(30)	(37)
Total shareholders' equity	71,847	70,217
Total liabilities and shareholders' equity	$ 79,429	$ 78,375