Note 14 - Deferred Compensation Plans (Details Textual)	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Officer [Member]
Deferred Compensation Liability, Current and Noncurrent, Total	$ 140,000	$ 177,000
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 7,000	10,000	$ 12,000
Director [Member]
Deferred Compensation Arrangement with Individual, Maximum Contractual Term (Year)	15 years
Deferred Compensation Liability, Current and Noncurrent, Total	$ 129,000	136,000
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 16,000	$ 16,000	$ 17,000
Peoples Bancorp, Inc [Member]
Number of Key Employees	3
Deferred Compensation Arrangement with Individual, Maximum Contractual Term (Year)	10 years