Annual report pursuant to Section 13 and 15(d)

Restructuring Charge (Details Textual)

v3.8.0.1
Restructuring Charge (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Restructuring Charge (Textual) [Abstract]      
Restructuring $ 165 $ 3,155  
restructuringexpenseconsultants   700  
Impairment of Long-Lived Assets to be Disposed of 0 1,181  
Production Related Impairments or Charges   1,600  
Impairment of Leasehold   1,200  
Accrued restructuring 63 1,171  
Accrued restructuring non-current 0 63  
Payments for Restructuring 1,336 4,008  
Unpaid balance of restructuring charges 63 1,234 $ 2,087
Employee Severance [Member]      
Restructuring Charge (Textual) [Abstract]      
Restructuring 165 1,326  
Payments for Restructuring 165 1,767  
Unpaid balance of restructuring charges 0 0 441
Other Restructuring Costs [Member]      
Restructuring Charge (Textual) [Abstract]      
Restructuring   1,829  
Payments for Restructuring 1,171 2,241  
Unpaid balance of restructuring charges $ 63 $ 1,234 $ 1,646