Note 23 - Acquisitions (Details Textual) - USD ($)		12 Months Ended
	Nov. 15, 2019	Dec. 31, 2019	Dec. 31, 2018
Goodwill, Ending Balance		$ 6,252,000
Amortization of Intangible Assets, Total		$ 0
Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life		13 years
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months		$ 256,000
Finite-Lived Intangible Assets, Amortization Expense, after Year Five		1,220,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two		256,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three		256,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four		256,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five		256,000
Certain Banking Centers, Performing Loans, and Customer Deposits from Republic Bank and Trust [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans	$ 126,823,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total	1,451,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits	131,769,000
Goodwill, Ending Balance	6,252,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Book Balance Value	127,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Credit Adjustment	1,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans, Other Adjustments	924,000
Business Combination, Acquisition Related Costs	775,000
Certain Banking Centers, Performing Loans, and Customer Deposits from Republic Bank and Trust [Member] | Core Deposits [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	$ 2,500,000
Finite-Lived Intangible Asset, Useful Life	13 years
Amortization of Intangible Assets, Total		0
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months		256,000
Finite-Lived Intangible Assets, Amortization Expense, after Year Five		1,200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two		256,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three		256,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four		256,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five		$ 256,000