Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Components of Intangible Assets (Details)

v3.8.0.1
Intangible Assets - Components of Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Mar. 31, 2017
Finite Lived Intangible Assets [Line Items]    
Cost $ 23,579 $ 23,579
Accumulated Amortization (20,186) (19,014)
Net 3,393 4,565
Software    
Finite Lived Intangible Assets [Line Items]    
Cost 11,544 11,544
Accumulated Amortization (9,275) (8,191)
Net 2,269 3,353
Trade names / trademarks    
Finite Lived Intangible Assets [Line Items]    
Cost 380 380
Accumulated Amortization (380) (380)
Net 0 0
Customer list    
Finite Lived Intangible Assets [Line Items]    
Cost 11,300 11,300
Accumulated Amortization (10,210) (10,152)
Net 1,090 1,148
License agreements    
Finite Lived Intangible Assets [Line Items]    
Cost 355 355
Accumulated Amortization (321) (291)
Net $ 34 $ 64