Note 2 - Loans and Allowance for Credit Losses - Financing Receivable, Troubled Debt Restructurings (Details) - Commercial Real Estate Portfolio Segment [Member] - Commercial Real Estate, Owner Occupied [Member] - Interest Only Payments [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
amortized cost	$ 6,396
Percentage	5.38%
Commercial real estate owner-occupied (Month)	6 months