Current and Long-Term Financing (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Schedule of Debt

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

	December 31
	2020			2019
Total outstanding borrowings of NACoal:
Revolving credit agreement	$	30,000		$	16,000
Other debt	16,465			8,943
Total debt outstanding	$	46,465		$	24,943
Current portion of borrowings outstanding	$	22,112		$	7,795
Long-term portion of borrowings outstanding	24,353			17,148
	$	46,465		$	24,943
Total available borrowings, net of limitations, under revolving credit agreement	$	146,951		$	148,644
Unused revolving credit agreement	$	116,951		$	132,644
Weighted average stated interest rate on total borrowings	2.3		%	5.1		%

Schedule of Maturities of Total Debt, Excluding Capital Leases

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

2021	20,924
2022	10,956
2023	990
2024	1,025
2025	1,061
Thereafter	10,041
	$	44,997