Note 5 - Mortgage Servicing Rights (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Activities in Mortgage Servicing Rights [Table Text Block]

	Years Ended
	December 31,
	2019			2018
	(In Thousands)
Mortgage servicing rights:
Beginning balance	$	7,100		$	6,578
Mortgage servicing rights capitalized		3,276			1,725
Amortization of mortgage servicing rights		(1,637	)		(1,203	)
Ending balance	$	8,739		$	7,100

Mortgage Servicing Rights [Member]

Notes Tables

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

	December 31,
	2019			2018
Key assumptions:
Discount rate		12%			12%
Prepayment speed range	110	-	246%	83	-	226%
Weighted average prepayment speed		171%			119%