CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Net Revenues:
Net product sales	$ 22,608	$ 41,274	$ 99,783	$ 131,590
Licensing revenue	2,046	2,177	5,597	4,765
Net revenues	24,654	43,451	105,380	136,355
Costs and expenses:
Cost of sales	20,484	36,657	88,759	119,257
Other operating costs and expenses	253	306	1,046	995
Selling, general and administrative expenses	1,926	2,025	5,671	6,094
Impairment of trademark			1,326
Total costs and expenses	22,663	38,988	96,802	126,346
Operating income	1,991	4,463	8,578	10,009
Other income:
Interest income, net	132	10	230	40
Gain on sale of building		347		347
Realized gain on sale of marketable security				828
Income before income taxes	2,123	4,820	8,808	11,224
Provision for income taxes	430	1,649	1,328	2,953
Net income	$ 1,693	$ 3,171	$ 7,480	$ 8,271
Net income per share:
Basic	$ 0.06	$ 0.12	$ 0.28	$ 0.30
Diluted	$ 0.06	$ 0.12	$ 0.28	$ 0.30
Weighted average shares outstanding:
Basic	27,130	27,130	27,130	27,130
Diluted	27,130	27,130	27,130	27,130