Note 12 - Insurance Reserves (Details) - Insurance Reserves (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Insurance Reserves [Abstract]
Balance at beginning of period	$ 49,363	$ 47,834	$ 49,637	$ 47,852
Expense provisions	1,530	1,885	4,577	5,187
Cash payments, net of recoveries	(1,424)	(557)	(4,745)	(3,877)
Balance at end of period	$ 49,469	$ 49,162	$ 49,469	$ 49,162