Note 10 - Income Taxes - Deferred Taxes (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Allowances for loan losses	$ 1,952,433	$ 1,976,060
Writedowns on foreclosed assets held for sale	681,281	773,652
Deferred loan fees/costs	56,209	123,390
Unrealized depreciation on available-for-sale securities	768,879	401,688
Tax Credits	521,441
Other	228,996	446,122
	4,209,239	3,720,912
Deferred tax liabilities:
FHLB stock dividends	(46,481)	(51,713)
Accumulated depreciation	(642,977)	(368,245)
Other	(45,646)	(70,849)
	(735,104)	(490,807)
Net deferred tax asset	$ 3,474,135	$ 3,230,105