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	$ 5,247,063	$ 4,884,288	$ 4,398,820
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	189,188	196,827	200,178
Gain on sale of securities	(380,904)	(423,832)	(312,577)
(Loss) gain on sale of other real estate	13,450		(2,382)
Provision for loan losses	570,000	192,500	82,500
Stock-based compensation expense	76,529	78,987	74,908
Deferred income taxes	(750,254)	4,748	134,478
Net amortization of unearned discounts on investment securities	250,755	109,311	303,036
Origination of mortgage loans held for sale	(76,032,671)	(91,053,923)	(71,767,800)
Proceeds from sale of mortgage loans held for sale	77,466,700	92,558,765	69,182,061
(Increase) decrease in accrued interest receivable and other assets	(63,949)	391,043	(274,201)
Increase (decrease) in accrued interest payable and other liabilities	(543,083)	176,898	153,882
Net cash provided by operating activities	6,042,824	7,115,612	2,172,903
Cash flows from investing activities:
Proceeds from calls and maturities of investment securities available for sale	9,630,804	2,315,000	1,920,000
Proceeds from sale of available for sale securities	36,218,087	16,564,118	37,159,363
Purchase of investment securities available for sale	(48,239,241)	(25,389,485)	(57,959,964)
Proceeds from sale of other real estate	85,001		37,855
Net increase in loans	(18,089,620)	(8,712,885)	(16,394,833)
Purchase of premises, equipment and leasehold improvements, net	(196,584)	(133,632)	(97,740)
Net cash used by investing activities	(20,591,553)	(15,356,884)	(35,335,319)
Cash flows from financing activities:
Net increase in deposit accounts	13,804,239	36,299,585	17,176,372
Net (decrease) increase in short-term borrowings		(6,980,681)	6,980,681
Dividends paid	(2,613,715)	(2,380,062)	(2,765,735)
Stock options exercised	405,749	122,946	26,050
Cash in lieu of fractional shares		(4,778)
Net cash (used) provided by financing activities	11,596,273	27,057,010	21,417,368
Net increase (decrease) in cash and cash equivalents	(2,952,456)	18,815,738	(11,745,048)
Cash and cash equivalents at beginning of year	29,194,786	10,379,048	22,124,096
Cash and cash equivalents at end of year	26,242,330	29,194,786	10,379,048
Cash paid during the year for:
Interest	400,531	419,004	429,758
Income taxes	2,320,830	2,196,000	1,819,000
Supplemental disclosure for non-cash investing and financing activity:
Change in unrealized gain (loss) on securities available for sale, net of income taxes	(1,599,658)	(250,473)	287,122
Change in dividends payable	54,706	59,178	325
Transfer of loans to other real estate owned		$ 186,210	$ 521,943