Note 7 - Current and Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Revenue Equipment Installment Notes [Member]
Current maturities of long-term debt	$ 28,074	$ 38,461
Long-term debt, noncurrent	123,527	163,387
Real Estate Note [Member]
Current maturities of long-term debt	1,204	1,184
Long-term debt, noncurrent	29,525	30,124
Borrowings under Credit Facility
Borrowings under Credit Facility	10,863	3,002
Current maturities of long-term debt	29,015	39,395
Long-term debt, noncurrent	163,520	196,057
Deferred loan costs	(263)	(250)
Deferred loan costs	(395)	(456)
Current portion of capital lease obligations	3,802	4,031
Principal portion of capital lease obligations, secured by related revenue equipment	9,899	10,547
Total debt and capital lease obligations	32,817	43,426
Total debt and capital lease obligations	$ 173,419	$ 206,604

Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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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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