Note 12 - Shareholders' Equity (Details) - Changes in Accumulated Other Comprehensive Loss by Component (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Changes in Accumulated Other Comprehensive Loss by Component [Abstract]
Balance, begining of period			$ 1,491	$ 6,678
Balance, begining of period			(8,208)	(9,048)
Balance, begining of period			(6,717)	(2,370)
Other comprehensive loss before reclassifications	(1,316)	1,149	(6,742)	393
Other comprehensive loss before reclassifications			(7,470)	(295)
Other comprehensive loss before reclassifications			(728)	(688)
Less: Amounts reclassified from accumulated other comprehensive income (loss)	(44)	0	287	9,859
Less: Amounts reclassified from accumulated other comprehensive income (loss)			(728)	(688)
Less: Amounts reclassified from accumulated other comprehensive income (loss)			(441)	9,171
Net current-period other comprehensive loss			(7,029)	(9,466)
Net current-period other comprehensive loss			(7,029)	(9,466)
Provision for income taxes			2,667	3,593
Provision for income taxes			2,667	3,593
Balance, end of period	(2,871)	805	(2,871)	805
Balance, end of period	(8,208)	(9,048)	(8,208)	(9,048)
Balance, end of period	$ (11,079)	$ (8,243)	$ (11,079)	$ (8,243)