Note 6 - Mortgage Loan Servicing (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Mortgage Loans Serviced for Others [Table Text Block]

	2018		2017
Mortgage loan portfolios serviced for:
Federal Home Loan Mortgage Corporation	$	599,262,000	$	600,495,000
Federal Home Loan Bank		16,333,000		13,136,000
Total mortgage loans serviced for others	$	615,595,000	$	613,631,000

Servicing Asset at Amortized Cost [Table Text Block]

	2018			2017
Balance at beginning of year	$	5,106,000		$	5,544,000
Additions		842,000			1,229,000
Amortized to expense		(1,512,000	)		(1,667,000	)
Balance at end of year	$	4,436,000		$	5,106,000

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

2019	$	1,087,000
2020		921,000
2021		762,000
2022		611,000
2023		470,000
Thereafter		585,000