CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 317	$ 16
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	34,663,000	34,063,000
Common stock, shares outstanding	34,663,000	34,063,000