4) Stock-based Compensation: Schedule of stock inventive plan changes (Details) (USD $)	9 Months Ended
Sep. 30, 2013	Dec. 31, 2012
Class A Common Stock
Shares, Outstanding	413,355	972,253
Shares outstanding	$ 1.84	$ 2.07
Shares Exercised	(482,866)
Per Share Shares exercised	$ 2.15
Shares Cancelled	(76,032)
Per Share Shares cancelled	$ 3.36
Options Exercisable	412,040
Options exercisable	$ 1.83
Weighted average contractual term of options outstanding	5.95 years
Weighted average contractual term of options exercisable	5.94 years
Aggregated intrinsic value of options outstanding	$ 1,748,854
Aggregated intrinsic value of options exercisable	1,748,854
Class C Common Stock
Shares, Outstanding	3,294,345	5,838,505
Shares outstanding	$ 1.78	$ 2.18
Shares Exercised	(1,906,022)
Per Share Shares exercised	$ 2.24
Shares Cancelled	(638,138)
Per Share Shares cancelled	$ 3.33
Options Exercisable	3,294,345
Options exercisable	$ 1.78
Weighted average contractual term of options outstanding	2.37 years
Weighted average contractual term of options exercisable	2.37 years
Aggregated intrinsic value of options outstanding	1,409,984
Aggregated intrinsic value of options exercisable	$ 1,409,984