Concentration of Credit Risk and Major Customers (Tables)

12 Months Ended

Dec. 31, 2023

Risks and Uncertainties [Abstract]

Schedule of Concentration of Credit Risk

Concentration of credit risk is summarized below:

	December 31,
	2023		2022
Electric coal utilities	$	28,870	$	82,608
Coal exporters and industrial customers	85,080		51,548
Steel and coke producers	29,340		24,230
Other	4,788		1,472
Total Trade Receivables	148,078		159,858
Less: Allowance for credit losses	(466)		(1,731)
Total Trade Receivables, net	$	147,612	$	158,127