Note 9 - Credit Facilities and Capital Leases (Detail) - Annual Maturities of Capital Lease Commitments, Including Interest (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
2014	$ 7,293
2015	7,392
2016	6,092
2017	2,851
Total	23,628	1,100
Less: imputed interest	(1,117)
Net capital lease obligation	$ 22,511	$ 17,500

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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