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Note 10 - Related-party Transactions (Details) - Accrued Expenses (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accrued Expenses [Abstract]
Total accrued expenses due to affiliates	$ 487us-gaap_DueToRelatedPartiesCurrent	$ 560us-gaap_DueToRelatedPartiesCurrent

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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