Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2015	Mar. 31, 2014
Deferred tax assets:
Accrued liabilities	$ 3,961	$ 3,884
Allowance for doubtful accounts	297	408
Inventory valuation reserve	24	14
Restructuring reserve	0	54
Federal losses and credit carryforwards	58,992	55,231
Foreign net operating losses	326	330
State losses and credit carryforwards	10,162	10,706
Deferred compensation	0	70
Deferred revenue	146	61
Goodwill and other intangible assets	3,129	3,611
Other	340	514
Deferred tax assets, gross	77,377	74,883
Deferred Tax Assets, Valuation Allowance, Current	76,420
Less: valuation allowance	76,400	73,014
Total	957	1,869
Deferred tax liabilities:
Property and equipment & software amortization	(690)	(1,560)
Indefinite-lived goodwill & intangible assets	(3,324)	(3,622)
Deferred Tax Liabilities, Other	34	(81)
Total	(3,980)	(5,263)
Total deferred tax liabilities	(3,023)	(3,394)
Undistributed Earnings of Foreign Subsidiaries	$ 700	$ 1,800