Note 3 - Significant Accounting Policies (Details) - Interest Expense (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Note 3 - Significant Accounting Policies (Details) - Interest Expense [Line Items]
Interest expense	$ (175)	$ (380)	$ (363)	$ (743)
Interest Expense, Other [Member]
Note 3 - Significant Accounting Policies (Details) - Interest Expense [Line Items]
Interest expense	(125)	(208)	(247)	(447)
Amortization of Debt Issuance Costs and Discount [Member]
Note 3 - Significant Accounting Policies (Details) - Interest Expense [Line Items]
Interest expense	(50)	(172)	(116)	(296)
Interest and Amortization Expense (Member)
Note 3 - Significant Accounting Policies (Details) - Interest Expense [Line Items]
Interest expense	$ (175)	$ (380)	$ (363)	$ (743)