Note 10 - Intangible Assets - Risk Characteristics of Loans Being Serviced (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)
Original Term Thirty Year Fixed Rate [Member]
Loan Principal Balance	$ 111,731
Weighted Average Interest Rate	2.89%
Weighted Average Remaining Term (Month)	138 months
Number of Loans	1,040
Original Term Fifteen Year Fixed Rate [Member]
Loan Principal Balance	$ 429,994
Weighted Average Interest Rate	3.51%
Weighted Average Remaining Term (Month)	309 months
Number of Loans	2,681