Net Loss Per Common Share (Details) - shares shares in Thousands	3 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Antidilutive stock options and restricted stock units
Net Loss Per Common Share
Antidilutive securities excluded from diluted net loss per common share computations	300	300
Performance Shares
Net Loss Per Common Share
Antidilutive securities excluded from diluted net loss per common share computations	20	60
Warrants
Net Loss Per Common Share
Antidilutive securities excluded from diluted net loss per common share computations	1,500	700

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration