Note 8 - Debt - Current and Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt, current	$ 5,722	$ 7,577
Debt, noncurrent	20,347	47,888
Principal portion of finance lease obligations, secured by related revenue equipment, current	6,848	5,687
Principal portion of finance lease obligations, secured by related revenue equipment, noncurrent	3,969	10,756
Principal portion of operating lease obligations, secured by related equipment	15,811	16,989
Principal portion of operating lease obligations, secured by related equipment	21,554	21,474
Total debt and finance lease obligations	28,381	30,253
Total debt and finance lease obligations	45,870	80,118
Finance Lease Secured by Related Revenue Equipment [Member]
Principal portion of finance lease obligations, secured by related revenue equipment, current	6,848	5,687
Principal portion of finance lease obligations, secured by related revenue equipment, noncurrent	3,969	10,756
Operating Lease Secured By Related Equipment [Member]
Principal portion of operating lease obligations, secured by related equipment	15,811	16,989
Principal portion of operating lease obligations, secured by related equipment	21,554	21,474
Draw Note [Member]
Credit facility, current	0	0
Credit facility, noncurrent	0	0
Revenue Equipment Installment Notes [Member]
Debt, current	4,537	6,437
Debt, noncurrent	2	11,358
Real Estate Note [Member]
Debt, current	1,185	1,140
Debt, noncurrent	20,345	21,530
Revolving Credit Facility [Member]
Credit facility, current	0	0
Credit facility, noncurrent	$ 0	$ 15,000

Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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