Note 13 - Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012
Note 13 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit)	$ (2,825,000)	$ 3,776,000		$ 2,641,000	$ 3,112,000
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation				(304,000)
Liability for Uncertain Tax Positions, Noncurrent	708,000		708,000	708,000
Increase (Decrease) in Deferred Income Taxes			77,000
Employee Stock Option [Member]
Note 13 - Income Taxes (Details) [Line Items]
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation				285,000
Other Current Liabilities [Member]
Note 13 - Income Taxes (Details) [Line Items]
Liability for Uncertain Tax Positions, Noncurrent	61,000		61,000	61,000
Other Liabilities [Member]
Note 13 - Income Taxes (Details) [Line Items]
Liability for Uncertain Tax Positions, Noncurrent	$ 648,000		$ 648,000	$ 648,000