Note 7 - Debt (Detail) - Current and Long-term Debt (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Borrowings under Credit Facility		$ 15,890
Borrowings under Credit Facility	5
Total debt	63,636	96,258
Total debt	95,214	128,167
Principal portion of capital lease obligations, secured by related revenue equipment	2,091	1,957
Principal portion of capital lease obligations, secured by related revenue equipment	14,003	16,129
Total debt and capital lease obligations	65,727	98,215
Total debt and capital lease obligations	109,217	144,296
Revenue Equipment Installment Notes [Member]
Notes payable, current	61,200	80,003
Notes payable, long-term	94,920	125,666
Real Estate Note [Member]
Notes payable, current	2,328	365
Notes payable, long-term		2,258
Other Note Payable [Member]
Notes payable, current	108
Notes payable, long-term	$ 289	$ 243

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 and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.

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