Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Income Tax [Line Items]
Unremitted earnings of foreign subsidiaries	$ 1,477
Undistributed earnings of foreign subsidiaries	8,045
Increased in additional paid-in capital	687	$ 645	$ 550
Valuation allowances	8,608	8,468
Reductions as a result of administrative procedure	628
Gross unrecognized tax benefit	1,199	1,764	$ 1,607
Unrecognized tax benefits, if recognized	779
Accrued interest and penalties related to unrecognized tax benefits	504
Accrued interest and penalties recorded during the current year	58
State and Local Jurisdiction
Income Tax [Line Items]
Deferred tax assets, operating loss carryforwards	9,095	8,991
Domestic Tax Authority
Income Tax [Line Items]
Deferred tax assets, operating loss carryforwards	$ 4,897	$ 4,841