CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net revenues:
Net product sales	$ 14,363	$ 17,635
Licensing revenue	659	3,616
Net revenues	15,022	21,251
Costs and expenses:
Cost of sales	13,921	16,277
Other operating costs and expenses	60	199
Selling, general and administrative expenses	4,923	5,101
Total costs and expenses	18,904	21,577
Operating (loss)	(3,882)	(326)
Other income:
Interest income, net	492	261
(Loss) before income taxes	(3,390)	(65)
Provision for income tax expense	3,461	172
Net (loss)	$ (6,851)	$ (237)
Basic (loss) per share	$ (0.27)	$ (0.01)
Diluted (loss) per share	$ (0.27)	$ (0.01)
Weighted average shares outstanding
Basic	25,282	27,115
Diluted	25,282	27,115