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Note 20 - Transactions with Related Entities (Details) - Summary of Transactions Between Company and Related Entities (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summary of Transactions Between Company and Related Entities [Abstract]
Property rental fee expense paid to the Parent	$ 1,821	$ 1,797	$ 1,762
Interest expense on note payable to the Parent	0us-gaap_InterestExpenseRelatedParty	0us-gaap_InterestExpenseRelatedParty	0us-gaap_InterestExpenseRelatedParty
Corporate financial, administrative, executive services, and research and development services provided to the Parent	151us-gaap_RevenueFromRelatedParties	148us-gaap_RevenueFromRelatedParties	146us-gaap_RevenueFromRelatedParties
Services rendered by an indirect shareholder of the Parent		$ 15	$ 51

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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