5) Stock-based Compensation: Schedule of stock inventive plan changes (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Class A Common Stock
Shares, Outstanding	741,973	585,844	741,973	618,261
Shares outstanding	$ 4.33	$ 3.97	$ 4.33	$ 3.89
Shares Exercised		(32,417)
Per Share Shares Exercised		$ 2.38
Options Exercisable	706,854	550,792
Options exercisable	$ 4.21	$ 3.82
Available options for future grant	$ 525,682	$ 397,342
Weighted average contractual term of options outstanding	6.62 years	6.99 years
Weighted average contractual term of options exercisable	6.50 years	6.86 years
Aggregated intrinsic value of options outstanding	$ 941,567	$ 1,179,541
Aggregated intrinsic value of options exercisable	$ 941,311	$ 1,179,541
Class C Common Stock
Shares, Outstanding	428,669	577,436	556,298	577,436
Shares outstanding	$ 5.59	$ 3.54	$ 4.61	$ 3.54
Shares Exercised	(103,402)
Per Share Shares Exercised	$ 1.31
Shares Cancelled	(24,227)
Per Share Shares cancelled	$ 1.31
Options Exercisable	407,669	551,186
Options exercisable	$ 5.50	$ 3.38
Available options for future grant	$ 227,750	$ 57,750
Weighted average contractual term of options outstanding	2.63 years	2.00 years
Weighted average contractual term of options exercisable	2.55 years	1.90 years
Aggregated intrinsic value of options outstanding	$ 151,012	$ 1,460,167
Aggregated intrinsic value of options exercisable	$ 151,012	$ 1,460,167