Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 4,033,977	$ 3,373,635	$ 2,903,830
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	160,000	141,300	330,000
Depreciation	923,578	961,964	890,812
Net amortization of investment securities	309,185	307,861	324,209
Income on cash surrender value of bank owned life insurance	(125,290)	(147,601)	(123,784)
Amortization of intangibles	15,625	15,625	44,931
Gain on sale/writedown of foreclosed assets	0	(13,077)	(84,898)
Net gain on sale of securities	(168,919)	(3,587)	(293,508)
Net gain on disposal of other assets	(36,701)	(9,305)	(3,733)
Change in:
Other assets	(253,894)	52,322	640,249
Other liabilities	324,142	(208,670)	(213,747)
Net cash provided by operating activities	5,181,703	4,470,467	4,414,361
Cash flows from investing activities:
Proceeds from calls, paydowns and maturities of securities HTM	5,952,271	5,115,703	3,983,421
Proceeds from calls, paydowns and maturities of securities AFS	10,354,337	4,143,139	2,460,175
Proceeds from Federal Home Loan Bank Stock repurchase	413,700	141,600	1,115,000
Proceeds from sale of securities available for sale	11,933,634	4,044,500	2,208,318
Proceeds from sale of securities held to maturity	576,834	516,746	0
Proceeds from maturity of certificates of deposit in other banks	245,000	1,225,000	1,960,000
Purchase of securities held to maturity	(478,559)	(5,207,650)	(6,239,587)
Purchase of securities available for sale	(25,129,827)	(5,709,379)	(20,586,864)
Purchase of Federal Home Loan Bank Stock	(418,700)	(450,800)	(954,000)
Net change in loans	(41,850,494)	(26,517,707)	(6,362,332)
Proceeds from bank owned life insurance	0	30,011	0
Purchase of premises and equipment	(1,455,043)	(370,837)	(2,311,767)
Proceeds from sales of other assets	304,825	201,000	578,067
Net cash used by investing activities	(39,552,022)	(22,838,674)	(24,149,569)
Cash flows from financing activities:
Net change in deposits	32,477,143	29,042,251	(460,947)
Payment of short-term portion of long-term debt	(7,590,476)	(5,133,333)	(11,800,000)
Proceeds from issuance of short-term debt	857,143	2,457,143	0
Proceeds from issuance of long-term debt	5,142,857	11,542,857	10,000,000
Cash dividends paid	(1,070,047)	(1,019,135)	(815,308)
Payment for treasury stock	(6,658)	0	0
Net cash provided (used) by financing activities	29,809,962	36,889,783	(3,076,255)
Increase (decrease) in cash and cash equivalents	(4,560,357)	18,521,576	(22,811,463)
Cash and cash equivalents - beginning of period	31,080,273	12,558,697	35,370,160
Cash and cash equivalents - end of period	26,519,916	31,080,273	12,558,697
Income taxes	964,000	725,000	255,000
Interest paid	1,600,593	1,314,156	1,414,059
NONCASH ITEMS:
Increase in foreclosed properties and decrease in loans	44,963	241,980	357,013
Unrealized gain (loss) on securities AFS	(848,222)	134,774	1,197,132
Unrealized gain (loss) on pension plan benefits	(110,306)	(1,032,035)	55,700
Net reclass between short and long-term debt	7,590,476	5,133,333	5,133,333
Sale of foreclosed properties through loans	0	(334,000)	0
Property moved from fixed assets to property held for sale	$ 211,500	$ 0	$ 0