CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net revenues:
Net revenues	$ 2,541	$ 4,236	$ 7,390	$ 10,959
Costs and expenses:
Cost of sales	2,358	4,046	7,003	10,292
Other operating costs and expenses	2	14	22	38
Selling, general and administrative expenses	948	1,100	2,883	3,784
Total costs and expenses	3,308	5,160	9,908	14,114
Operating (loss)	(767)	(924)	(2,518)	(3,155)
Other income:
Interest income, net	240	131	617	365
(Loss) before income taxes	(527)	(793)	(1,901)	(2,790)
Provision for income tax expense	2	378	73	313
Net (loss)	$ (529)	$ (1,171)	$ (1,974)	$ (3,103)
Basic (loss) per share	$ (0.02)	$ (0.05)	$ (0.09)	$ (0.12)
Diluted (loss) per share	$ (0.02)	$ (0.05)	$ (0.09)	$ (0.12)
Weighted average shares outstanding
Basic	21,637	24,299	22,221	25,857
Diluted	21,637	24,299	22,221	25,857
Net Product Sales
Net revenues:
Net revenues	$ 2,421	$ 4,075	$ 7,040	$ 10,413
Licensing Revenue
Net revenues:
Net revenues	$ 120	$ 161	$ 350	$ 546