Quarterly report pursuant to Section 13 or 15(d)

Basis of Financial Statement Presentation - Disaggregation of Revenue (Details)

v3.10.0.1
Basis of Financial Statement Presentation - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Contract liabilities - current (Accrued expenses) $ 256 $ 256
Contract liabilities - noncurrent (Other non-current obligations) 384 513
Total contract liabilities $ 640 $ 769