Current and Long-Term Financing (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Debt

The following table summarizes the Company's available and outstanding borrowings:

	December 31
	2021			2020
Total outstanding borrowings of NACoal:
Revolving credit agreement	$	4,000		$	30,000
Other debt	16,710			16,465
Total debt outstanding	$	20,710		$	46,465
Current portion of borrowings outstanding	$	2,527		$	22,112
Long-term portion of borrowings outstanding	18,183			24,353
	$	20,710		$	46,465
Total available borrowings, net of limitations, under revolving credit agreement	$	120,231		$	146,951
Unused revolving credit agreement	$	116,231		$	116,951
Weighted average stated interest rate on total borrowings	3.7		%	2.3		%

Schedule of Maturities of Total Debt, Excluding Capital Leases

Annual maturities of total debt, excluding leases, are as follows:

2022	2,377
2023	2,460
2024	2,068
2025	5,175
2026	5,492
Thereafter	2,798
	$	20,370