25) Quarterly Financial Data (unaudited): Quarterly Financial Information (Details) - USD ($)	3 Months Ended																12 Months Ended
	Dec. 31, 2019		Sep. 30, 2019		Jun. 30, 2019		Mar. 31, 2019		Dec. 31, 2018		Sep. 30, 2018		Jun. 30, 2018		Mar. 31, 2018		Dec. 31, 2019		Dec. 31, 2018
Details
Total revenues	$ 77,742,254		$ 75,379,659		$ 68,445,182		$ 61,493,835		$ 61,454,399		$ 67,223,093		$ 68,865,126		$ 82,076,109		$ 283,060,930		$ 279,618,727
Benefits and Expenses	75,614,143		70,619,837		63,821,339		59,061,676		62,835,219		65,011,295		64,702,895		60,888,928
Earnings (loss) before income taxes	2,128,111		4,759,822		4,623,843		2,432,159		(1,380,820)		2,211,798		4,162,231		21,187,181
Income tax expense	(262,378)		(1,142,408)		(1,143,789)		(501,841)		889,013		(198,052)		(924,014)		(4,261,258)		$ (3,050,416)		$ (4,494,311)
Net Earnings	$ 1,865,733		$ 3,617,414		$ 3,480,054		$ 1,930,318		$ (491,807)		$ 2,013,746		$ 3,238,217		$ 16,925,923
Earnings Per Share, Basic	$ 0.10	[1]	$ 0.20	[1]	$ 0.19	[1]	$ 0.11	[1]	$ (0.03)	[1]	$ 0.11	[1]	$ 0.18	[1]	$ 0.95	[1]	$ 0.60	[2]	$ 1.21	[2]
Earnings Per Share, Diluted	$ 0.10	[1]	$ 0.20	[1]	$ 0.19	[1]	$ 0.11	[1]	$ (0.03)		$ 0.11		$ 0.18		$ 0.94		$ 0.60	[2]	$ 1.19	[2]

[1] Earnings per share amounts have been adjusted retroactively for the effect of annual stock dividends

[2] Earnings per share amounts have been adjusted retroactively for the effect of annual stock dividends. The weighted-average shares outstanding includes the weighted-average Class A common shares and the weighted-average Class C common shares determined on an equivalent Class A common stock basis. Net earnings per common share represent net earnings per equivalent Class A common share