Note 14 - Income Taxes - Deferred Tax Assets & Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Allowance for loan losses	$ 2,059,000	$ 1,978,000
Deferred compensation	1,031,000	1,047,000
OREO valuation allowance	68,000	385,000
Premises and equipment	418,000	349,000
Unrealized loss on available-for-sale investment securities		846,000
Other	919,000	719,000
Total deferred tax assets	4,495,000	5,324,000
Deferred tax liabilities:
Deferred loan costs	(1,424,000)	(1,587,000)
Unrealized gain on available-for-sale investment securities	(861,000)
Other	(204,000)	(202,000)
Total deferred tax liabilities	(2,489,000)	(1,789,000)
Net deferred tax assets	$ 2,006,000	$ 3,535,000