Note 6 - Credit Facilities and Capital Leases (Detail) - Annual Maturities of Capital Lease Commitments, Including Interest (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
2013	$ 6,049
2014	5,821
2015	4,618
2016	1,931
Total	18,419
Less: imputed interest	(920)
Net capital lease obligation	$ 17,499	$ 10,300

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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