Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details 3)

v3.10.0.1
Summary of Significant Accounting Policies (Details 3) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2018
Dec. 31, 2017
Contract with Customer, Liability [Abstract]      
Contract with Customer, Liability, Revenue Recognized $ 137,000 $ 229,000  
Deferred Revenue [Member]      
Contract with Customer, Liability [Abstract]      
Contract with Customer, Liability 2,723,000 2,723,000 $ 2,952,000
Unbilled Revenues [Member]      
Contract with Customer, Asset, Net [Abstract]      
Contract with Customer, Asset, Net $ 0 $ 0 $ 116,280