Acquisition - Firebird and Phoenix - Narrative (Details)		3 Months Ended	12 Months Ended
	Aug. 12, 2022 USD ($) segment $ / shares shares	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) segment shares
Business Acquisition [Line Items]
Issuance of shares in acquisition (in shares) | shares			10,172	15,259
Property and equipment		$ 200,000
Goodwill			$ 6,673,000	$ 6,428,000
Firebird
Business Acquisition [Line Items]
Connection to number of terminals | segment	6
Number of tractors | segment	123
Number of trailers | segment	216
Firebird and Phoenix
Business Acquisition [Line Items]
Fair value of total consideration transferred	$ 39,280,000
Cash payment for acquisition	$ 35,350,000
Number of shares (in shares) | shares	45,777
Equity interest issued or issuable, value assigned	$ 1,364,000
Issuance of shares in acquisition (in shares) | shares	15,259
Contingent consideration arrangement	$ 2,566,000
Share price (in dollars per share) | $ / shares	$ 33.75
Goodwill	$ 6,673,000		6,700,000
Goodwill, tax deductible amount	0
Deferred tax liabilities	6,207,000
Total revenues				22,300,000
Net earnings				$ 200,000
Transaction costs			$ 400,000
Number of operating lease agreement | segment				4
Firebird and Phoenix | Minimum
Business Acquisition [Line Items]
Term of contract				2 years
Firebird and Phoenix | Maximum
Business Acquisition [Line Items]
Term of contract				5 years
Firebird and Phoenix | Customer Relationships
Business Acquisition [Line Items]
Acquired identifiable intangible assets	$ 5,100,000
Useful life	10 years
Firebird and Phoenix | Trade Names
Business Acquisition [Line Items]
Acquired identifiable intangible assets	$ 2,200,000
Useful life	15 years
Firebird and Phoenix | Noncompete Agreements
Business Acquisition [Line Items]
Acquired identifiable intangible assets	$ 300,000
Useful life	5 years
Firebird and Phoenix | To be Issued
Business Acquisition [Line Items]
Number of shares (in shares) | shares	30,518
Issuance period	3 years