Consolidated Statements of Shareholders' Equity (Deficit) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Statement of Stockholders' Equity [Abstract]
Shares sold, price (in USD per share)		$ 15.00
Underwriting discounts and commissions and offering expenses	$ 100	$ 17,536

Per share or per unit amount of equity securities issued.

No definition available.

Name:	us-gaap_SharesIssuedPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant