CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Net Revenues:
Net product sales	$ 23,481	$ 44,876
Licensing revenue	1,171	1,135
Net revenues	24,652	46,011
Costs and expenses:
Cost of sales	20,984	39,173
Other operating costs and expenses	151	408
Selling, general and administrative expenses	2,188	2,008
Total costs and expenses	23,323	41,589
Operating income	1,329	4,422
Other income:
Interest income, net	222	31
Income before income taxes	1,551	4,453
Provision for income taxes	182	613
Net income	$ 1,369	$ 3,840
Net income per share:
Basic	$ 0.05	$ 0.14
Diluted	$ 0.05	$ 0.14
Weighted average shares outstanding:
Basic	27,130	27,130
Diluted	27,130	27,130