Federal Income Taxes (Details 1) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Gross deferred tax assets:
Allowance for loan and other real estate losses	$ 1,655,000	$ 1,766,000
Deferred loan origination cost - net	303,000	314,000
Impairment loss on securities	48,000	48,000
Deferred compensation	1,006,000	939,000
AMT credit carryforward	904,000	704,000
Unrealized loss on available-for-sale securities	1,499,000	76,000
Other items	540,000	763,000
Total gross deferred tax assets	5,955,000	4,610,000
Valuation allowance		(94,000)	$ (94,000)
Total net deferred tax assets	5,955,000	4,516,000
Gross deferred tax liabilities:
Premises and equipment	(566,000)	(586,000)
Other items	(524,000)	(617,000)
Total net deferred tax liabilities	(1,090,000)	(1,203,000)
Net deferred tax asset	$ 4,865,000	$ 3,313,000