CONSOLIDATED AND CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - Related Party Transactions (Parentheticals) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Revenues		$ 229,305	$ 211,258	$ 775,502	$ 596,525
Cost of products sold: (excluding depreciation and amortization)
Cost of products sold		152,187	129,570	480,695	350,414
Expenses:
Operating expenses		23,856	20,088	68,682	58,046
Selling, general and administrative		7,626	7,659	23,932	23,624
Terminalling and storage
Revenues:
Revenues	[1]	20,007	18,980	59,859	56,060
Transportation
Revenues:
Revenues	[1]	58,993	39,079	161,535	103,820
Product Sales
Revenues:
Revenues	[1]	147,220	150,249	544,855	427,796
Sulfur services
Revenues:
Revenues	[1]	25,783	27,887	135,691	95,109
Cost of products sold: (excluding depreciation and amortization)
Cost of products sold	[1]	25,230	20,266	100,078	65,657
Terminalling and storage
Revenues:
Revenues	[1]	40,546	30,598	110,130	75,606
Cost of products sold: (excluding depreciation and amortization)
Cost of products sold	[1]	32,289	24,167	87,267	58,895
Related Party
Expenses:
Operating expenses		23,856	20,088	68,682	58,046
Related Party | Terminalling and storage
Revenues:
Revenues		16,065	15,866	49,685	46,741
Expenses:
Operating expenses		4,805	4,284	13,835	12,513
Related Party | Transportation
Revenues:
Revenues		7,111	5,564	20,862	14,463
Expenses:
Operating expenses		17,220	13,949	48,954	40,652
Related Party | Product Sales
Revenues:
Revenues		61	68	477	253
Related Party | Sulfur services
Cost of products sold: (excluding depreciation and amortization)
Cost of products sold		2,616	2,441	7,884	7,379
Expenses:
Operating expenses		1,294	1,321	4,328	3,370
Related Party | Terminalling and storage
Cost of products sold: (excluding depreciation and amortization)
Cost of products sold		$ 10,202	$ 7,259	$ 30,062	$ 18,863

[1] Related Party Transactions Included Above Three Months EndedNine Months EndedSeptember 30,September 30,2022202120222021Revenues:*    Terminalling and storage$16,065 $15,866 $49,685 $46,741 Transportation7,111 5,564 20,862 14,463 Product Sales61 68 477 253 Costs and expenses:* Cost of products sold: (excluding depreciation and amortization) Sulfur services2,616 2,441 7,884 7,379 Terminalling and storage10,202 7,259 30,062 18,863 Expenses:Operating expenses23,856 20,088 68,682 58,046 Selling, general and administrative7,626 7,659 23,932 23,624