Quarterly report pursuant to Section 13 or 15(d)

Restructuring Charge (Details Textual)

v3.10.0.1
Restructuring Charge (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Mar. 31, 2018
Restructuring Cost and Reserve [Line Items]        
Restructuring $ 165 $ 0 $ 165  
Unpaid balance of restructuring charges   0   $ 63
Employee Severance [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring   0    
Unpaid balance of restructuring charges   0   0
Other Restructuring [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring   0    
Unpaid balance of restructuring charges   $ 0   $ 63