Note 13 - Acquisition of AAT Carriers, Inc. - Summary of Preliminary Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Feb. 09, 2022
Goodwill	$ 68,946	$ 58,217
AAT Carriers Inc [Member]
Accounts receivable			$ 842
Prepaid expenses			33
Other short-term assets			19
Net property and equipment			7,994
Other intangibles, net			32,000
Total identifiable assets acquired			40,888
Accounts payable			(19)
Accrued expenses			(1,396)
Finance lease obligations			(458)
Other long-term liabilities			(3)
Total liabilities assumed			(1,876)
Net identifiable assets acquired			39,012
Goodwill			15,699
Net assets acquired			$ 54,711