Note 7 - Debt (Details) - Current and Long-term Debt (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Note 7 - Debt (Details) - Current and Long-term Debt [Line Items]
Borrowings under Credit Facility	$ 0	$ 0
Borrowings under Credit Facility	7,010	5
Notes payable, current	44,070	63,636
Notes payable, long-term	169,491	95,214
Principal portion of capital lease obligations, secured by related revenue equipment	8,732	2,091
Principal portion of capital lease obligations, secured by related revenue equipment	13,186	14,003
Total debt and capital lease obligations	52,802	65,727
Total debt and capital lease obligations	182,677	109,217
Revenue Equipment Installment Notes [Member]
Note 7 - Debt (Details) - Current and Long-term Debt [Line Items]
Notes payable, current	43,745	61,200
Notes payable, long-term	158,596	94,920
Real Estate Note [Member]
Note 7 - Debt (Details) - Current and Long-term Debt [Line Items]
Notes payable, current	217	2,328
Notes payable, long-term	3,693
Other Note Payable [Member]
Note 7 - Debt (Details) - Current and Long-term Debt [Line Items]
Notes payable, current	108	108
Notes payable, long-term	$ 192	$ 289

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 more than one year (or one operating cycle, if longer) after the balance sheet date.

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The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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