Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Finite-lived Intangible Assets (Details)

v3.19.3.a.u2
Intangible Assets - Finite-lived Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Mar. 31, 2019
Intangible Assets    
Intangible Assets, Gross $ 7,706 $ 7,706
Accumulated Amortization 7,687 7,519
Intangible Assets, Net 19 187
Manufacturing license    
Intangible Assets    
Intangible Assets, Gross 3,700 3,700
Accumulated Amortization 3,700 3,700
Technology    
Intangible Assets    
Intangible Assets, Gross 2,240 2,240
Accumulated Amortization 2,221 2,053
Intangible Assets, Net 19 187
Trade name & parts, service and TA100 customer relationships    
Intangible Assets    
Intangible Assets, Gross 1,766 1,766
Accumulated Amortization $ 1,766 $ 1,766