Note 17: Accumulated Other Comprehensive Income: Accumulated Balances of Other Comprehensive Income (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Details
Unrealized net gains on available- for-sale securities and trust investments	$ (490,850)	$ 280,493	$ 346,341
Increase (Decrease) in Unrealized net gains on available- for-sale securities and trust investments	757,690	(771,343)	(65,848)
Unrealized net gains on available- for-sale securities and trust investments	266,840	(490,850)	280,493
Unrealized gains (losses) on derivative bank loan interest rate swaps	(8,508)	(19,136)	(35,569)
Increase (Decrease) in Unrealized gains (losses) on derivative bank loan interest rate swaps	6,490	10,628	16,433
Unrealized gains (losses) on derivative bank loan interest rate swaps	(2,018)	(8,508)	(19,136)
Other comprehensive income, Balance	(499,358)	261,357	310,772
Increase (Decrease) in Other comprehensive income, Balance	764,180	(760,715)	(49,415)
Other comprehensive income, Balance	$ 264,822	$ (499,358)	$ 261,357