Note 11 - Investment in Mortgage Servicing Rights (Details) - Risk Characteristics of Loans Being Serviced (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Original Term Thirty Year Fixed Rate [Member]
Note 11 - Investment in Mortgage Servicing Rights (Details) - Risk Characteristics of Loans Being Serviced [Line Items]
Loan Principal Balance (in Dollars)	$ 201,997
Weighted Average Interest Rate	4.33%
Weighted Average Remaining Term	299 months
Number of Loans	1,736
Original Term Fifteen Year Fixed Rate [Member]
Note 11 - Investment in Mortgage Servicing Rights (Details) - Risk Characteristics of Loans Being Serviced [Line Items]
Loan Principal Balance (in Dollars)	115,713
Weighted Average Interest Rate	3.38%
Weighted Average Remaining Term	142 months
Number of Loans	1,298
Adjustable Rate [Member]
Note 11 - Investment in Mortgage Servicing Rights (Details) - Risk Characteristics of Loans Being Serviced [Line Items]
Loan Principal Balance (in Dollars)	$ 193
Weighted Average Interest Rate	3.90%
Weighted Average Remaining Term	319 months
Number of Loans	5