Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.19.1
Summary of Significant Accounting Policies (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Deferred Offering Costs $ 44,000    
Warrant [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 8,641,813 6,797,038  
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 492,808 1,437,596  
Accounts Receivable [Member] | Customer Concentration Risk One [Member]      
Concentration Risk, Percentage 80.00%   47.00%
Accounts Receivable [Member] | Customer Concentration Risk Two [Member]      
Concentration Risk, Percentage 15.00%   42.00%
Sales Revenue, Net [Member] | Customer Concentration Risk One [Member]      
Concentration Risk, Percentage 64.00% 67.00%  
Sales Revenue, Net [Member] | Customer Concentration Risk Two [Member]      
Concentration Risk, Percentage 32.00% 27.00%