Note 10 - Investment in Mortgage Servicing Rights (Tables)

9 Months Ended

Sep. 30, 2015

Transfers and Servicing [Abstract]

Servicing Liability at Amortized Cost [Table Text Block]

(Dollars in thousands)	Nine Months ended September 30, 2015			Twelve Months ended December 31, 2014			Nine Months ended September 30, 2014
Mortgage servicing rights:
Balance, beginning of period	$	1,507			1,708			1,708
Originations		366			316			219
Amortization		(427	)		(517	)		(385	)
Balance, end of period	$	1,446			1,507			1,542
Fair value of mortgage servicing rights	$	2,579			2,562			2,661

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	$	210,023		4.24		299		1,813
Original term 15 year fixed rate		107,843		3.25		139		1,205
Adjustable rate		59		4.38		308		2