Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Contract Balances (Details)

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Revenue Recognition - Contract Balances (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 31, 2019
Mar. 31, 2019
Revenue Recognition    
Increase (decrease) in balance of deferred revenue $ (2,100)  
Increase in deposits 400  
Changes in deferred revenue    
Deposits 791  
Deferred revenue balance, end of the period 6,061 $ 8,200
Estimated revenue to be recognized thereafter 1,100  
FPP agreements    
Revenue Recognition    
Increase (decrease) in balance of deferred revenue (800)  
Changes in deferred revenue    
FPP Balance, beginning of the period 4,881  
FPP Billings 12,595  
FPP Revenue recognized (12,206)  
Balance attributed to FPP contracts 5,270  
Estimated revenue to be recognized in the next 12 months 4,200  
Distributor Support System    
Revenue Recognition    
Increase (decrease) in balance of deferred revenue $ (1,700)