Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net Revenues:
Net product sales	$ 32,299	$ 40,214	$ 77,175	$ 90,316
Licensing revenue	2,416	1,166	3,551	2,588
Net revenues	34,715	41,380	80,726	92,904
Costs and expenses:
Cost of sales	29,102	37,005	68,275	82,600
Other operating costs and expenses	385	302	793	689
Selling, general and administrative expenses	1,737	2,380	3,745	4,069
Impairment of trademark	1,326		1,326
Total costs and expenses	32,550	39,687	74,139	87,358
Operating income	2,165	1,693	6,587	5,546
Other income:
Interest income, (expense), net	67	(1)	98	30
Realized gain on sale of marketable security				828
Income before income taxes	2,232	1,692	6,685	6,404
Provision (benefit) for income taxes	285	(71)	898	1,304
Net income	$ 1,947	$ 1,763	$ 5,787	$ 5,100
Net income per share:
Basic	$ 0.07	$ 0.06	$ 0.21	$ 0.19
Diluted	$ 0.07	$ 0.06	$ 0.21	$ 0.19
Weighted average shares outstanding:
Basic	27,130	27,130	27,130	27,130
Diluted	27,130	27,130	27,130	27,131