Income Taxes - Schedule of Income Tax (Benefit) Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Current:
Federal	$ 66	$ 10	$ (2)
State and local	(446)	5	(52)
Foreign	73	107	59
Deferred:
Federal	(2,985)	96	19
State and local	41	10	10
Foreign	0	8	(28)
Total income tax expense (benefit)	$ (3,251)	$ 236	$ 6