Income Taxes - Components of Income Tax Expense Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Current:
Federal	$ 728	$ 5,600	$ 5,370
State	352	564	552
Foreign	1,711	1,373	2,099
Current Income Tax Expense (Benefit), Total	2,791	7,537	8,021
Deferred:
Federal	(1,260)	1,547	1,550
State	(161)	321	116
Foreign	(187)	0	0
Deferred Income Tax Expense (Benefit), Total	(1,608)	1,868	1,666
Income Tax Expense (Benefit), Total	$ 1,183	$ 9,405	$ 9,687