Note 7 - Current and Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Revenue Equipment Installment Notes [Member]
Long-term debt, current	$ 26,109	$ 38,461
Long-term debt, noncurrent	107,760	163,387
Real Estate Note [Member]
Long-term debt, current	1,194	1,184
Long-term debt, noncurrent	29,829	30,124
Leases Expiring Between April 2016 and February 2022 [Member]
Principal portion of capital lease obligations, secured by related revenue equipment	3,917	4,031
Principal portion of capital lease obligations, secured by related revenue equipment	$ 10,224	$ 10,547
Borrowings under Credit Facility, current
Borrowings under Credit Facility, noncurrent	$ 9,713	$ 3,002
Long-term debt, current	27,056	39,395
Long-term debt, noncurrent	146,864	196,057
Deferred loan costs	(247)	(250)
Deferred loan costs	(438)	(456)
Principal portion of capital lease obligations, secured by related revenue equipment	3,917	4,031
Principal portion of capital lease obligations, secured by related revenue equipment	10,224	10,547
Total debt and capital lease obligations	30,973	43,426
Total debt and capital lease obligations	$ 157,088	$ 206,604

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

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