Note 2 - Discontinued Operations - Results of Discontinued Operations (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Gain on sale of loans	$ 199,834		$ 258,131	$ 122,988
Other	11,223	6,449	32,214	33,390
Total noninterest income	455,831	194,244	928,357	702,883
Salaries and benefits	1,773,253	1,635,943	5,005,322	4,665,035
Occupancy	389,598	363,656	1,090,290	1,061,662
Data processing fees	602,029	383,802	1,594,688	1,152,756
Professional fees	221,744	245,749	631,234	757,132
Advertising	98,203	33,968	202,401	115,032
Other	276,995	298,485	779,635	893,085
Total noninterest expense	3,343,860	3,010,544	9,431,671	8,795,508
Loss from discontinued operations		(537,080)	(1,590,638)	(923,601)
Benefit for income taxes		(135,380)	(392,193)	(230,766)
Less: Net loss from discontinued operations		(401,700)	(1,198,445)	(692,835)
Discontinued Operations [Member]
Net interest income		84,524	170,782	246,400
Gain on sale of loans		3,409,098	4,813,660	10,699,250
Other			190
Total noninterest income		3,409,098	4,813,850	10,699,250
Salaries and benefits		3,024,779	4,480,025	9,085,069
Occupancy		183,547	232,360	516,203
Data processing fees		373,774	584,369	1,063,651
Professional fees		57,930	107,972	133,602
Advertising		101,857	118,801	297,567
Net loss on disposal			751,982
Other		288,815	299,761	773,159
Total noninterest expense		4,030,702	6,575,270	11,869,251
Loss from discontinued operations		(537,080)	(1,590,638)	(923,601)
Benefit for income taxes		(135,380)	(392,193)	(230,766)
Less: Net loss from discontinued operations		$ (401,700)	$ (1,198,445)	$ (692,835)