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
Mar. 31, 2019
Mar. 31, 2018
Cash, Uninsured Amount $ 448,000  
Cash, FDIC Insured Amount $ 329,000  
Geographic Concentration Risk [Member]    
Concentration Risk, Percentage 10.00% 10.00%
Sales Revenue, Net [Member]    
Concentration Risk, Percentage 10.00% 10.00%
Accounts Receivable [Member]    
Concentration Risk, Percentage 10.00%