Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

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Stockholders' Equity (Details) - USD ($)
 1 Months Ended 2 Months Ended 12 Months Ended
May. 31, 2015
Apr. 30, 2015
May. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Stockholders' Equity [Abstract]          
Preferred stock, shares authorized       1,000,000  
Common stock, shares authorized       25,000,000 25,000,000
Common stock, shares outstanding       14,466,513 12,719,689
Stockholders Equity [Line Items]          
Sale of common stock in secondary offering, net of offering costs of $655,106, shares   1,670,000 1,745,100    
Price per share $ 3.00 $ 3.00 $ 3.00    
Gross proceeds   $ 5,010,000 $ 5,235,300 $ 4,354,894  
Net proceeds, after the payment of commissions and legal and other expenses   $ 4,400,000 $ 4,564,400    
Underwriters option to purchase an additional shares [Member]          
Stockholders Equity [Line Items]          
Sale of common stock in secondary offering, net of offering costs of $655,106, shares 75,100        
Price per share $ 3.00   $ 3.00    
Gross proceeds $ 225,300        
Net proceeds, after the payment of commissions and legal and other expenses $ 210,000