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Stock Options (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Mar. 26, 2015
Oct. 31, 2009
Jan. 31, 2007
Stock Options (Textual)          
Weighted average grant date fair value of options granted $ 1.65 $ 2.03      
Unrecognized compensation cost related to non vested options $ 128,781        
Remaining Contractual Life 2 years 1 month 13 days        
Compensation expense $ 113,952 $ 136,308      
Stock options granted period, description Options granted under the Plans vest over periods ranging from immediately upon grant to a three year period and expire ten years from date of grant.        
2015 Stock Option Plan [Member]          
Stock Options (Textual)          
Common shares authorized for issuance (in shares)     400,000    
2007 Omnibus Equity Compensation Plan [Member]          
Stock Options (Textual)          
Common shares authorized for issuance (in shares)       420,000 210,000