Note 10 - Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Servicing Liability at Amortized Cost [Table Text Block]

(Dollars in thousands)	Three Months ended March 31, 2018			Twelve Months ended December 31, 2017			Three Months ended March 31, 2017
Balance, beginning of period	$	1,724			1,604			1,604
Originations		126			675			144
Amortization		(126	)		(555	)		(124	)
Balance, end of period	$	1,724			1,724			1,624
Fair value of mortgage servicing rights	$	3,458			3,196			3,043

Summary of Risk Characteristics of Loans Being Serviced [Table Text Block]

			Weighted			Weighted
	Loan		Average			Average
	Principal		Interest			Remaining		Number
(Dollars in thousands)	Balance		Rate			Term (months)		of Loans
Original term 30 year fixed rate	$	272,082		4.07	%		305		2,143
Original term 15 year fixed rate		101,530		3.11			134		1,057
Adjustable rate		55		3.25			278		2

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	March 31, 2018
	Gross					Unamortized
	Carrying		Accumulated			Intangible
(Dollars in thousands)	Amount		Amortization			Assets
Mortgage servicing rights	$	4,282		(2,558	)		1,724
Core deposit intangible		574		(244	)		330
Goodwill		802		0			802
Total	$	5,658		(2,802	)		2,856

	March 31, 2017
	Gross					Unamortized
	Carrying		Accumulated			Intangible
(Dollars in thousands)	Amount		Amortization			Assets
Mortgage servicing rights	$	4,046		(2,422	)		1,624
Core deposit intangible		574		(145	)		429
Goodwill		802		0			802
Total	$	5,422		(2,567	)		2,855

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

(Dollars in thousands)	Mortgage Servicing Rights		Core Deposit Intangible		Total Intangible Assets
Year ending December 31,
2018	$	338		75		413
2019		395		99		494
2020		321		99		420
2021		273		47		320
2022		209		10		219
Thereafter		188		0		188
Total	$	1,724		330		2,054