Note 6 - Mortgage Loan Servicing (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Mortgage Loans Serviced for Others [Table Text Block]

	2019		2018
Mortgage loan portfolios serviced for:
Federal Home Loan Mortgage Corporation	$	711,643,000	$	599,262,000
Federal Home Loan Bank		15,317,000		16,333,000
Total mortgage loans serviced for others	$	726,960,000	$	615,595,000

Servicing Asset at Amortized Cost [Table Text Block]

	2019			2018
Balance at beginning of year	$	4,436,000		$	5,106,000
Additions		1,962,000			842,000
Amortized to expense		(1,746,000	)		(1,512,000	)
Balance at end of year	$	4,652,000		$	4,436,000

Schedule of Mortgage Servicing Rights Future Amortization Expense [Table Text Block]

2020	$	1,099,000
2021		925,000
2022		759,000
2023		604,000
2024		467,000
Thereafter		798,000