Note 2 - Acquisition - Assets Acquired and Liabilities Assumed (Details) - Peoples Bancorp of Mt. Pleasant, Inc. [Member] - Subsequent Event [Member] $ in Thousands	Jan. 01, 2020 USD ($)
Consideration Paid	$ 10,405
Cash and cash equivalents	833
Certificates of deposit in other financial institutions	11,839
Securities, available-for-sale	4,051
Federal bank and other restricted stocks, at cost	154
Loans, net	54,799
Premises and equipment	818
Core deposit intangible	270
Accrued interest receivable and other assets	141
Noninterest-bearing deposits	(11,979)
Interest-bearing deposits	(48,872)
Federal funds purchased	(2,348)
Federal Home Loan Bank advances	(491)
Other liabilities	(166)
Total net assets acquired	9,049
Goodwill	$ 1,356