Quarterly report pursuant to Section 13 or 15(d)

Deferred Revenue (Details)

v3.7.0.1
Deferred Revenue (Details) - USD ($)
3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Mar. 31, 2017
Deferred Revenue      
Increase in deposits $ 900,000    
Change in balance attributed to FPP contracts 827,000 $ 1,863,000  
Changes in deferred revenue      
Deferred revenue balance, end of the period 5,877,000   $ 5,050,000
FPP agreements      
Deferred Revenue      
Change in balance attributed to FPP contracts (61,500)    
Changes in deferred revenue      
FPP Balance, beginning of the period 3,414,000    
FPP Billings 3,617,000    
FPP Revenue recognized (3,678,000)    
Balance attributed to FPP contracts 3,353,000    
Deposits 2,524,000    
Deferred revenue balance, end of the period $ 5,877,000