4) Stock-based Compensation: Schedule of stock inventive plan changes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Class A Common Stock
Shares, Outstanding	585,844	480,129	480,129	618,261	512,795
Shares outstanding		$ 3.28	$ 3.28	$ 3.89	$ 3.20
Shares Exercised	(32,417)		(23,820)
Per Share Shares Exercised	$ 2.38		$ 1.85
Shares Cancelled			(8,846)
Per Share Shares cancelled			$ 2.31
Options Exercisable	550,792	447,571	447,571
Options exercisable	$ 3.82	$ 3.17	$ 3.17
Available options for future grant	$ 397,342	$ 561,649
Weighted average contractual term of options outstanding	6.99 years	7.15 years
Weighted average contractual term of options exercisable	6.86 years	7.00 years
Aggregated intrinsic value of options outstanding	$ 1,179,541	$ 1,646,768	$ 1,646,768
Aggregated intrinsic value of options exercisable	$ 1,179,541	$ 1,583,605	$ 1,583,605
Class C Common Stock
Shares, Outstanding	577,436	577,568	577,568	577,436	691,591
Shares outstanding		$ 2.62	$ 2.62	$ 3.54	$ 2.00
Shares Exercised			(114,023)
Per Share Shares Exercised			$ 2.14
Options Exercisable	551,186	550,693	550,693
Options exercisable	$ 3.38	$ 2.51	$ 2.51
Available options for future grant	$ 57,750	$ 155,000
Weighted average contractual term of options outstanding	2.00 years	2.43 years
Weighted average contractual term of options exercisable	1.90 years	2.35 years
Aggregated intrinsic value of options outstanding	$ 1,460,167	$ 2,363,921	$ 2,363,921
Aggregated intrinsic value of options exercisable	$ 1,460,167	$ 2,312,190	$ 2,312,190