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4) Stock-based Compensation: Schedule of stock inventive plan changes (Details) (USD $)
 9 Months Ended
Sep. 30, 2014
Dec. 31, 2013
Class A Common Stock
    
Shares, Outstanding 408,464 405,133
Shares outstanding $ 2.75 $ 2.41
Shares Granted 52,000  
Per Share Shares Granted $ 4.29  
Shares Exercised (40,468)  
Per Share Shares exercised $ 1.66  
Shares Cancelled (8,201)  
Per Share Shares cancelled $ 2.29  
Options Exercisable 334,869  
Options exercisable $ 2.40  
Available options for future grant $ 412,480  
Weighted average contractual term of options outstanding 7.01 years  
Weighted average contractual term of options exercisable 6.45 years  
Aggregated intrinsic value of options outstanding 913,166  
Aggregated intrinsic value of options exercisable 869,804  
Class C Common Stock
    
Shares, Outstanding 558,657 508,657
Shares outstanding $ 2.00 $ 2.00
Shares Granted 50,000  
Per Share Shares Granted $ 4.72  
Options Exercisable 495,532  
Options exercisable $ 1.92  
Available options for future grant 55,000  
Weighted average contractual term of options outstanding 2.57 years  
Weighted average contractual term of options exercisable 1.80 years  
Aggregated intrinsic value of options outstanding 1,524,902  
Aggregated intrinsic value of options exercisable $ 1,512,402