Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Stock Based Compensation Expense (Details)

v3.7.0.1
Stockholders' Equity - Stock Based Compensation Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Stock-based compensation expense    
Share based compensation expenses $ 810 $ 2,570
Cost of goods sold.    
Stock-based compensation expense    
Share based compensation expenses 65 325
Research and development    
Stock-based compensation expense    
Share based compensation expenses 29 74
Selling, general and administrative    
Stock-based compensation expense    
Share based compensation expenses $ 716 $ 2,171