Note 9 - Income Taxes (Details) - Activity in Valuation Allowance on Deferred Tax Assets (Valuation Allowance of Deferred Tax Assets [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Valuation Allowance of Deferred Tax Assets [Member]
Valuation Allowance [Line Items]
Beginning balance	$ 299	$ 550
Additional provisions to allowance	1,684
Write-offs and other deductions		(251)
Ending balance	$ 983	$ 299