Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.19.1
Summary of Significant Accounting Policies (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Deferred Offering Costs $ 607,000 $ 54,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 34.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent 50.00%  
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent 0.00% 7.72%
Warrant [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 8,641,813 5,555,577
Antidilutive Securities Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   2,762,594
Restricted Stock Units (RSUs) [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 964,505  
Accounts Receivable [Member] | Customer Concentration Risk One [Member]    
Concentration Risk, Percentage 47.00% 74.00%
Accounts Receivable [Member] | Customer Concentration Risk Two [Member]    
Concentration Risk, Percentage 42.00% 12.00%
Sales Revenue, Net [Member] | Customer Concentration Risk One [Member]    
Concentration Risk, Percentage 55.00% 61.00%
Sales Revenue, Net [Member] | Customer Concentration Risk Two [Member]    
Concentration Risk, Percentage 37.00% 25.00%