Note 4 - Loans Receivable, Net (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, 90 Days or More Past Due, Still Accruing	$ 0	$ 0
Financing Receivable, Nonaccrual	7,636,000
Financing Receivable, Nonaccrual, Review Limit	100,000
Financing Receivable, Modified in Period, Amount	0	$ 0
Commercial Portfolio Segment [Member]
Financing Receivable, Nonaccrual, Review Limit	200,000
Financial Asset, Not Past Due [Member]
Financing Receivable, Nonaccrual	4,100,000
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Nonaccrual	287,000
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Nonaccrual	$ 714,000