Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Net Revenues:
Net product sales	$ 44,876	$ 50,102
Licensing revenue	1,135	1,422
Net revenues	46,011	51,524
Costs and expenses:
Cost of sales	39,173	45,595
Other operating costs and expenses	408	387
Selling, general and administrative expenses	2,008	1,689
Total costs and expenses	41,589	47,671
Operating income	4,422	3,853
Other income:
Interest income, net	31	31
Realized gain on sale of marketable security		828
Income before income taxes	4,453	4,712
Provision for income taxes	613	1,375
Net income	$ 3,840	$ 3,337
Net income per share:
Basic	$ 0.14	$ 0.12
Diluted	$ 0.14	$ 0.12
Weighted average shares outstanding:
Basic	27,130	27,130
Diluted	27,130	27,130