Note 24 - Condensed Parent Company Statements - Condensed Balance Sheets (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
ASSETS
Cash	$ 34,121,642	$ 37,406,930	$ 9,088,441	$ 18,774,419
Deferred and receivable income taxes	3,650,553	1,727,174
	965,137,870	794,459,520
LIABILITIES
Subordinated debentures	21,760,829	15,465,000
Note payable to bank	5,000,000
STOCKHOLDERS' EQUITY
Common stock	690,200	687,850
Additional paid-in capital	51,382,585	50,856,069
Retained earnings, substantially restricted	65,829,687	60,679,308
Accumulated other comprehensive loss	(452,756)	(206,193)
Treasury stock	36,971,124	37,125,541
	965,137,870	794,459,520
Parent Company [Member]
ASSETS
Cash	1,476,735	713,996
Investment in subsidiary	104,786,630	89,319,774
Investment in Capital Trusts	651,000	465,000
Prepaid expenses and other assets	132,946	19,148
Deferred and receivable income taxes	1,006,823	469,020
	108,054,134	90,986,938
LIABILITIES
Subordinated debentures	21,760,829	15,465,000
Note payable to bank	5,000,000
Accrued expenses and other liabilities	807,813	623,545
Due to subsidiary	6,900	6,900
STOCKHOLDERS' EQUITY
Common stock	690,200	687,850
Additional paid-in capital	51,382,585	50,856,069
Retained earnings, substantially restricted	65,829,687	60,679,308
Accumulated other comprehensive loss	(452,756)	(206,193)
Treasury stock	(36,971,124)	(37,125,541)
	$ 108,054,134	$ 90,986,938