5) Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Details
Net earnings	$ 5,357,287	$ 3,852,279	$ 7,150,819	$ 5,715,982
Weighted-average Class A equivalent common share outstanding (1)	14,030,903	13,694,539	13,985,114	13,643,682
GrantOfEmployeeStockOptions	$ 346,046	$ 586,764	$ 392,712	$ 573,723
Diluted weighted-average shares outstanding	14,376,949	14,281,303	14,377,826	14,217,405
Net earnings per Class A Equivalent common share (1)	$ 0.38	$ 0.28	$ 0.51	$ 0.42
Net earnings per Class A Equivalent common share-assuming dilution (1)	$ 0.37	$ 0.27	$ 0.50	$ 0.40