3) Investments: Held-to-maturity Securities (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Amortized Cost	$ 136,877,427	$ 129,449,410
Held-to-maturity Securities, Unrecognized Holding Gain	17,982,294	17,456,239
Held-to-maturity Securities, Unrecognized Holding Loss	(546,783)	(688,560)
HeldToMaturitySecuritiesEstimatedFairValue	154,312,937	146,217,089
US Treasury and Government
Amortized Cost	2,598,089	2,602,589
Held-to-maturity Securities, Unrecognized Holding Gain	486,779	514,572
HeldToMaturitySecuritiesEstimatedFairValue	3,084,868	3,117,161
US States and Political Subdivisions Debt Securities
Amortized Cost	2,134,029	2,040,277
Held-to-maturity Securities, Unrecognized Holding Gain	295,921	285,241
Held-to-maturity Securities, Unrecognized Holding Loss	(7,398)	(3,982)
HeldToMaturitySecuritiesEstimatedFairValue	2,422,552	2,321,536
Corporate Debt Securities
Amortized Cost	126,954,323	118,285,147
Held-to-maturity Securities, Unrecognized Holding Gain	16,812,155	16,230,468
Held-to-maturity Securities, Unrecognized Holding Loss	(527,918)	(607,322)
HeldToMaturitySecuritiesEstimatedFairValue	143,238,560	133,908,293
Collateralized Mortgage Backed Securities
Amortized Cost	4,430,908	5,010,519
Held-to-maturity Securities, Unrecognized Holding Gain	335,923	327,871
Held-to-maturity Securities, Unrecognized Holding Loss	(11,467)	(76,056)
HeldToMaturitySecuritiesEstimatedFairValue	4,755,364	5,262,334
Redeemable Preferred Stock
Amortized Cost	760,078	1,510,878
Held-to-maturity Securities, Unrecognized Holding Gain	51,516	98,087
Held-to-maturity Securities, Unrecognized Holding Loss		(1,200)
HeldToMaturitySecuritiesEstimatedFairValue	$ 811,594	$ 1,607,765