CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Net revenues:
Net product sales	$ 4,075	$ 3,764	$ 10,413	$ 14,079
Licensing revenue	161	1,170	546	3,518
Net revenues	4,236	4,934	10,959	17,597
Costs and expenses:
Cost of sales	4,046	3,361	10,292	12,921
Other operating costs and expenses	14	23	38	200
Selling, general and administrative expenses	1,100	1,198	3,784	3,881
Total costs and expenses	5,160	4,582	14,114	17,002
Operating (loss) income	(924)	352	(3,155)	595
Other income:
Interest income, net	131	54	365	162
(Loss) income before income taxes	(793)	406	(2,790)	757
Provision (Benefit) for income tax expense	378	(42)	313	198
Net (loss) income	$ (1,171)	$ 448	$ (3,103)	$ 559
Basic net (loss) income per share	$ (0.05)	$ 0.02	$ (0.12)	$ 0.02
Diluted net (loss) income per share	$ (0.05)	$ 0.02	$ (0.12)	$ 0.02
Weighted average shares outstanding
Basic	24,299	27,129	25,857	27,130
Diluted	24,299	27,129	25,857	27,130