XML 90 R27.htm IDEA: XBRL DOCUMENT
v3.22.4

Note 8 - Leases (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Leases [Abstract] |
Summary of Leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
(In thousands) |  | Financing |  | Operating |  | Total
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Future minimum lease payments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
2023 | ​ | $ | 6,302 | ​ | $ | 161 | ​ | $ | 6,463
2024 | ​ | ​ | 4,005 | ​ | ​ | 161 | ​ | ​ | 4,166
2025 | ​ | ​ | 1,032 | ​ | ​ | 164 | ​ | ​ | 1,196
2026 | ​ | ​ | — | ​ | ​ | 168 | ​ | ​ | 168
2027 | ​ | ​ | — | ​ | ​ | 168 | ​ | ​ | 168
Total undiscounted lease payments | ​ | ​ | 11,339 | ​ | ​ | 822 | ​ | ​ | 12,161
Less: Amounts representing interest | ​ | ​ | (453) | ​ | ​ | (115) | ​ | ​ | (568)
Present value of lease obligations | ​ | $ | 10,886 | ​ | $ | 707 | ​ | $ | 11,593
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average remaining term (years) | ​ | ​ | 2.0 | ​ | ​ | 5.0 | ​ | ​ | ​
Weighted average discount rate | ​ | ​ | 4.2% | ​ | ​ | 6.0% | ​ | ​ | ​
​
Schedule of right-of-use assets and lease liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(In thousands) | Classification | ​ | December 31, 2022 | ​ | December 31, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Right-of-use assets | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financing | Financing lease right-of-use assets, net | ​ | $ | 12,905 | ​ | $ | 9,128
Operating | Other assets | ​ | ​ | 694 | ​ | ​ | 25
Total right-of-use assets | ​ | ​ | $ | 13,599 | ​ | $ | 9,153
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current lease liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financing | Current portion of financing lease obligations | ​ | $ | 5,969 | ​ | $ | 3,461
Operating | Accrued expenses | ​ | ​ | 122 | ​ | ​ | 25
Non-current lease liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financing | Long-term portion of financing lease obligations | ​ | $ | 4,917 | ​ | $ | 4,599
Operating | Other long-term liabilities | ​ | ​ | 585 | ​ | ​ | —
Total lease liabilities | ​ | ​ | $ | 11,593 | ​ | $ | 8,085
​

X
- Definition Tabular disclosure of Right-of-use assets and lease liabilities. + References No definition available. + Details
Name: | metc_ScheduleOfRightOfUseAssetsAndLeaseLiabilitiesTableTextBlock
Namespace Prefix: | metc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration