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Stock-Based Compensation; Changes in Equity (Details) - USD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Shares Outstanding at the end of period (in shares) 203,500  
Shares, Exercisable (in shares) 159,900  
Weighted Average Exercise Price, Outstanding at the end of period (in dollars per share) $ 5.20  
Weighted Average Exercise Price, Exercisable (in dollars per share) $ 5.19  
Weighted Average Remaining Contractual Life, Outstanding (in years) 1 year 3 months 18 days  
Weighted Average Remaining Contractual Life, Exercisable (in years) 1 year  
Aggregate Intrinsic Value Outstanding (in dollars) $ 25,665  
Aggregate Intrinsic Value, Exercisable (in dollars) $ 25,665  
Employee Stock Option [Member]    
Shares Outstanding, beginning of period (in shares) 214,500  
Shares, Granted (in shares) 0  
Shares, Cancelled (in shares) 11,000  
Shares, Exercised (in shares) 0  
Shares Outstanding at the end of period (in shares) 203,500 214,500
Shares, Exercisable (in shares) 159,900  
Weighted Average Exercise Price, Outstanding, beginning of period (in dollars per share) $ 5.20  
Weighted Average Exercise Price, Granted (in dollars per share) 0  
Weighted Average Exercise Price, Cancelled (in dollars per share) 5.24  
Weighted Average Exercise Price, Exercised (in dollars per share) 0  
Weighted Average Exercise Price, Outstanding at the end of period (in dollars per share) 5.20 $ 5.20
Weighted Average Exercise Price, Exercisable (in dollars per share) $ 5.19  
Weighted Average Remaining Contractual Life, Outstanding (in years) 1 year 3 months 18 days 2 years 1 month 6 days
Weighted Average Remaining Contractual Life, Exercisable (in years) 1 year  
Aggregate Intrinsic Value Outstanding (in dollars) $ 25,960  
Aggregate Intrinsic Value Outstanding (in dollars) 25,665 $ 25,960
Aggregate Intrinsic Value, Exercisable (in dollars) $ 25,665