4) Stock-based Compensation: Schedule of stock inventive plan changes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Class A Common Stock
Shares, Outstanding	589,801	488,543	488,543	618,261	512,795
Shares outstanding	$ 3.97	$ 3.25	$ 3.25	$ 3.89	$ 3.20
Shares Exercised	(28,460)		(15,406)
Per Share Shares Exercised	$ 2.15		$ 1.89
Shares Cancelled			(8,846)
Per Share Shares cancelled			$ 2.31
Options Exercisable	519,711	409,961	409,961
Options exercisable	$ 3.65	$ 2.99	$ 2.99
Available options for future grant	$ 397,342	$ 266,649
Weighted average contractual term of options outstanding	7.25 years	7.37 years
Weighted average contractual term of options exercisable	6.96 years	6.99 years
Aggregated intrinsic value of options outstanding	$ 755,390	$ 1,698,099	$ 1,698,099
Aggregated intrinsic value of options exercisable	$ 755,390	$ 1,534,777	$ 1,534,777
Class C Common Stock
Shares, Outstanding	577,436	577,568	577,568	577,436	691,591
Shares outstanding	$ 3.54	$ 2.62	$ 2.62	$ 3.54	$ 2.00
Shares Exercised			(114,023)
Per Share Shares Exercised			$ 2.14
Options Exercisable	524,936	511,318	511,318
Options exercisable	$ 3.19	$ 2.34	$ 2.34
Available options for future grant	$ 57,750
Weighted average contractual term of options outstanding	2.25 years	2.69 years
Weighted average contractual term of options exercisable	2.03 years	2.35 years
Aggregated intrinsic value of options outstanding	$ 1,001,904	$ 2,375,472	$ 2,375,472
Aggregated intrinsic value of options exercisable	$ 1,001,904	$ 2,242,810	$ 2,242,810