Note 12 - Borrowings (Details) - Lines of Credit (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Line of Credit Facility [Line Items]
Amount available	$ 80,000	$ 60,000
Count	8	5
Secured Debt [Member]
Line of Credit Facility [Line Items]
Amount available	15,000	35,000
Count	2	3
Unsecured Debt [Member]
Line of Credit Facility [Line Items]
Amount available	$ 65,000	$ 25,000
Count	6	2