Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Deferred tax assets:
Accrued liabilities	$ 3,892	$ 5,567
Allowance for doubtful accounts	126	198
Inventory valuation reserve	38	54
Federal losses and credit carryforwards	64,953	59,855
Foreign net operating losses	392	295
State losses and credit carryforwards	9,474	9,591
Deferred revenue	704	423
Goodwill and other intangible assets	1,332	2,281
Other	152	365
Deferred tax assets, gross	81,063	78,629
Deferred Tax Assets, Valuation Allowance, Current	80,013
Less: valuation allowance	80,000	77,846
Total	1,050	783
Deferred tax liabilities:
Property and equipment & software amortization	(772)	(478)
Indefinite-lived goodwill & intangible assets	(3,459)	(3,352)
Deferred Tax Liabilities, Other	(3,181)	(3,047)
Total	(4,231)	(3,830)
Undistributed Earnings of Foreign Subsidiaries	$ 1,300	$ 1,000