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Note 17 - Leases (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
Note 17 - Leases (Details Textual) - USD ($)	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		$ 0	$ 0
Operating Lease, Payments	$ 100,000		300,000
Property, Plant and Equipment, Gross		836,490,000	771,131,000
Property, Plant and Equipment, Net		527,218,000	504,719,000
Lessor, Operating Lease, Payment to be Received		21,111,000
Depreciation		99,264,000	64,605,000	$ 62,806,000
Trucks under Operating Lease [Member]
Property, Plant and Equipment, Gross		67,440,000	57,790,000
Property, Plant and Equipment, Net		37,932,000	32,595,000
Lessor, Operating Lease, Payment to be Received		21,111,000	14,268,000
Depreciation		8,500,000
Dock space, Warehouse and Office Space [Member]
Property, Plant and Equipment, Gross		13,738,000
Property, Plant and Equipment, Net		10,937,000
Lessor, Operating Lease, Payment to be Received		67,750
Real Estate Leases [Member] \| Related Party [Member]
Operating Lease, Payments		1,349,261
Shop and Office Space [Member] \| Related Party [Member]
Lessor, Operating Lease, Payment to be Received		67,750
Property, Plant, and Equipment, Lessor Asset under Operating Lease, before Accumulated Depreciation		$ 13,738,000	$ 10,936,000
Minimum [Member] \| Leases without Early Cancellation Options [Member]
Lessee, Operating Lease, Term of Contract (Year)		3 years
Minimum [Member] \| Trucks under Operating Lease [Member]
Lessor, Operating Lease, Term of Contract (Month)		5 months
Minimum [Member] \| Office, Shop and Parking Spaces [Member]
Lessee, Operating Lease, Liability, to be Paid		$ 111,000
Maximum [Member] \| Shop and Office Leases with Early Cancellation Options [Member]
Lessee, Operating Lease, Term of Contract (Year)			5 years
Maximum [Member] \| Trucks under Operating Lease [Member]
Lessor, Operating Lease, Term of Contract (Month)		60 months