Note 7 - Debt - Current and Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt, current	$ 8,387	$ 7,577
Debt, noncurrent	22,020	47,888
Principal portion of finance lease obligations, secured by related revenue equipment, current	7,499	5,687
Principal portion of finance lease obligations, secured by related revenue equipment, noncurrent	5,751	10,756
Principal portion of operating lease obligations, secured by related revenue equipment	16,847	16,989
Principal portion of operating lease obligations, secured by related revenue equipment	24,524	21,474
Total debt and lease obligations	32,733	30,253
Total debt and lease obligations	52,295	80,118
Finance Lease Secured by Related Revenue Equipment [Member]
Principal portion of finance lease obligations, secured by related revenue equipment, current	7,499	5,687
Principal portion of finance lease obligations, secured by related revenue equipment, noncurrent	5,751	10,756
Principal portion of operating lease obligations, secured by related revenue equipment	16,847	16,989
Principal portion of operating lease obligations, secured by related revenue equipment	24,524	21,474
Draw Note [Member]
Credit facility, current	0	0
Credit facility, noncurrent	0	0
Revenue Equipment Installment Notes [Member]
Debt, current	7,210	6,437
Debt, noncurrent	1,378	11,358
Real Estate Note [Member]
Debt, current	1,177	1,140
Debt, noncurrent	20,642	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
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-SubTopic 20
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