Note 12 - Income Taxes (Details) - Reconciliation of Income Tax Computed at the U.S. Federal Statutory Rate (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Income Tax Computed at the U.S. Federal Statutory Rate [Abstract]
Expected tax benefit	$ (5,450)	$ (8,024)	$ (4,221)
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal benefit	(694)	(770)	(274)
Non-deductible items	240	274	668
Tax rate international	433	551	(533)
Other	115	(18)	278
Income tax benefit	$ (5,356)	$ (7,987)	$ (4,082)