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
Summary of Significant Accounting Policies (Textual)    
Unrecognized tax benefits period 12 months  
Allowance for doubtful accounts $ 133,288 $ 97,829
Sales tax description Accounts at each institution are insured by the Federal Deposit Insurance Corporation (FDIC), up to $250,000.  
Advertising and promotional expense $ 269,550 264,632
Amount excess of FDIC insurance limit $ 12,962,958 $ 750,141