Note 14 - Commitments and Contingencies (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Leases, Rent Expense	$ 7,724	$ 6,510	$ 4,495
Loans and Leases Receivable, Commitments to Purchase or Sell	$ 1,325
Entity Number of Employees	335
Number [Member]
Multiemployer Plans, Collective-Bargaining Arrangement, Description	nine