Note 8 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure Text Block [Abstract]

Servicing Liability at Amortized Cost [Table Text Block]

(Dollars in thousands)	2015			2014
Mortgage servicing rights:
Balance, beginning of year	$	1,507			1,708
Originations		547			316
Amortization		(555	)		(517	)
Balance, end of year		1,499			1,507
Valuation reserve		0			0
Mortgage servicing rights, net	$	1,499			1,507
Fair value of mortgage servicing rights	$	2,590			2,562

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

(Dollars in thousands)	Loan Principal Balance		Weighted Average Interest Rate			Weighted Average Remaining Term (months)		Number of Loans
Original term:
30 year fixed rate	$	218,688		4.21	%		301		1,854
15 year fixed rate		107,493		3.23			139		1,192
Adjustable rate		59		4.38			305		2

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

	Gross					Unamortized
	Carrying		Accumulated			Intangible
(Dollars in thousands)	Amount		Amortization			Assets
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
December 31, 2014
Mortgage servicing rights	$	3,600		(2,093	)		1,507

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 ended December 31,
2016	$	440		74		514
2017		357		74		431
2018		268		74		342
2019		208		74		282
2020		119		74		193
Thereafter		107		23		130
	$	1,499		393		1,892