Note 12 - Other income (expense), net (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Note 12 - Other income (expense), net (Details) [Line Items]
Other Nonoperating Income (Expense)	$ (49,000)	$ 8,000	$ 1,776,000	$ 727,000
Other Nonoperating Income Expense Percent Increase	712.50%		144.30%
Increase [Member]
Note 12 - Other income (expense), net (Details) [Line Items]
Other Nonoperating Income (Expense)	$ 57,000		$ 1,800,000	$ 1,000,000