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4) Stock-based Compensation: Schedule of stock inventive plan changes (Details) (USD $)
 6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Class A Common Stock
    
Shares, Outstanding 368,340 405,133
Shares outstanding $ 2.50 $ 2.41
Shares Exercised (34,955)  
Per Share Shares exercised $ 1.44  
Shares Cancelled (1,838)  
Per Share Shares cancelled $ 2.92  
Options Exercisable 325,243  
Options exercisable $ 2.23  
Available options for future grant $ 314,480  
Weighted average contractual term of options outstanding 6.77 years  
Weighted average contractual term of options exercisable 6.42 years  
Aggregated intrinsic value of options outstanding 690,130  
Aggregated intrinsic value of options exercisable 689,924  
Class C Common Stock
    
Shares, Outstanding 508,656 508,656
Shares outstanding $ 2.00 $ 2.00
Options Exercisable 482,406  
Options exercisable $ 1.84  
Available options for future grant 105,000  
Weighted average contractual term of options outstanding 2.11 years  
Weighted average contractual term of options exercisable 1.99 years  
Aggregated intrinsic value of options outstanding 1,194,177  
Aggregated intrinsic value of options exercisable $ 1,194,177