Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Deferred tax assets:
Accrued liabilities	$ 3,944	$ 2,720
Allowance for doubtful accounts	120	143
Inventory valuation reserve	41	20
Federal losses and credit carryforwards	45,227	42,713
Foreign net operating losses	730	623
State losses and credit carryforwards	9,886	9,592
Deferred revenue	488	652
Goodwill and other intangible assets	0	286
Other	65	96
Deferred tax assets, gross	60,501	56,845
Deferred Tax Assets, Valuation Allowance, Current	57,852
Less: valuation allowance	57,900	54,260
Total	2,649	2,585
Deferred tax liabilities:
Property and equipment & software amortization	(361)	(412)
Goodwill and other intangible assets	(2,706)	(2,277)
Deferred Tax Liabilities, Other	(418)	(104)
Total	(3,067)	(2,689)
Undistributed Earnings of Foreign Subsidiaries	$ 3,100	$ 1,700