Note 7 - Debt - Current and Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt, current	$ 26,461	$ 18,897
Debt, noncurrent	163,195	90,367
Principal portion of finance lease obligations, secured by related revenue equipment, current	2,123	5,326
Principal portion of finance lease obligations, secured by related revenue equipment, noncurrent	3,266	432
Principal portion of operating lease obligations, secured by related real estate and revenue equipment	14,247	18,179
Principal portion of operating lease obligations, secured by related real estate and revenue equipment	39,278	46,428
Total debt and lease obligations	42,831	42,402
Total debt and lease obligations	205,739	137,227
Finance Lease Secured by Related Revenue Equipment [Member]
Principal portion of finance lease obligations, secured by related revenue equipment, current	2,123	5,326
Principal portion of finance lease obligations, secured by related revenue equipment, noncurrent	3,266	432
Operating Lease Secured By Related Equipment [Member]
Principal portion of operating lease obligations, secured by related real estate and revenue equipment	14,247	18,179
Principal portion of operating lease obligations, secured by related real estate and revenue equipment	39,278	46,428
Draw Note [Member]
Credit facility, current	0	0
Credit facility, noncurrent	0	0
Revenue Equipment Installment Notes [Member]
Debt, current	25,194	17,656
Debt, noncurrent	104,578	71,267
Real Estate Note [Member]
Debt, current	1,267	1,241
Debt, noncurrent	18,460	19,100
Revolving Credit Facility [Member]
Credit facility, current	0	0
Credit facility, noncurrent	$ 40,157	$ 0

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

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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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