Note 8 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Servicing Liability at Amortized Cost [Table Text Block]

(Dollars in thousands)	2016			2015
Mortgage servicing rights:
Balance, beginning of year	$	1,499			1,507
Originations		706			547
Amortization		(601	)		(555	)
Balance, end of year		1,604			1,499
Valuation reserve		0			0
Mortgage servicing rights, net	$	1,604			1,499
Fair value of mortgage servicing rights	$	2,952			2,590

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

(Dollars in thousands)	Loan Principal Balance		Weighted Av erage Interest Rate			Weighted Average Remaining Term (months)		Number of Loans
Original term:
30 year fixed rate	$	235,933		4.07	%		305		1,953
15 year fixed rate		110,377		3.12			140		1,163
Adjustable rate		57		2.75			293		2

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

	Gross					Unamortized
	Carrying		Accumulated			Intangible
(Dollars in thousands)	Amount		Amortization			Assets
December 31, 2016
Mortgage servicing rights	$	3,954		(2,350	)		1,604
Core deposit intangible		574		(120	)		454
Goodwill		802		0			802
Total	$	5,330		(2,470	)		2,860
December 31, 2015
Mortgage servicing rights	$	3,739		(2,240	)		1,499
Core deposit intangible		421		(28	)		393
Total	$	4,160		(2,268	)		1,892

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

(Dollars in thousands)	Mortgage Servicing Rights		Core Deposit Intangible		Total Amortizing Intangible Assets
Year ended December 31,
2017	$	440		99		539
2018		350		99		449
2019		297		99		396
2020		215		99		314
2021		162		47		209
Thereafter		140		11		151
	$	1,604		454		2,058