Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details)

v3.10.0.1
Revenue Recognition (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Apr. 01, 2018
Mar. 31, 2018
Assets:            
Prepaid Expense and Other Assets, Current $ 1,169   $ 1,169   $ 888 $ 816
Liabilities:            
Accrued Liabilities, Current 2,854   2,854   3,400 3,328
Deferred revenue 679   679   1,680 1,790
Deferred revenue non-current 514   514   627 846
Equity [Abstract]            
Retained Earnings (Accumulated Deficit) (332,652)   (332,652)   (329,316) $ (329,645)
Revenue 10,722 $ 13,675 33,865 $ 47,481    
Gross profit 4,590 6,076 14,718 20,118    
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent (1,556) 799 (3,198) 947    
Net income (loss) (1,556) $ 799 (3,336) $ 947    
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]            
Equity [Abstract]            
Revenue 27   82      
Gross profit 27   82      
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent 27   82      
Net income (loss) 27   82      
Calculated under Revenue Guidance in Effect before Topic 606 [Member]            
Assets:            
Prepaid Expense and Other Assets, Current 1,112   1,112      
Liabilities:            
Accrued Liabilities, Current 2,797   2,797      
Deferred revenue 789   789      
Deferred revenue non-current 651   651      
Equity [Abstract]            
Retained Earnings (Accumulated Deficit) (332,899)   (332,899)      
Revenue 10,749   33,947      
Gross profit 4,617   14,800      
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent (1,529)   (3,116)      
Net income (loss) (1,529)   (3,254)      
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]            
Assets:            
Prepaid Expense and Other Assets, Current (57)   (57)   72  
Liabilities:            
Accrued Liabilities, Current (57)   (57)   72  
Deferred revenue 110   110   (110)  
Deferred revenue non-current 137   137   (219)  
Equity [Abstract]            
Retained Earnings (Accumulated Deficit) $ (247)   (247)   $ 329  
Retained Earnings [Member]            
Equity [Abstract]            
Net income (loss)     $ (3,336)