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v3.23.3

Note 2 - Revenue From Contracts With Customers - Assets and Liabilities (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Current portion of deferred revenue |  | $ 6,399 |  | $ 6,256
Deferred revenue |  | 35,076 |  | 40,181
Balance |  | 46,437 | $ 61,862 |
Increase due to minimums and lease amendment fees |  | 11,525 | 11,309 |
Recognition of previously deferred revenue |  | (16,487) | (28,403) |
Balance |  | 41,475 | $ 44,768 |
Coal Royalty Revenues [Member] |  |  |  |
Current portion of deferred revenue |  | 6,399 |  | 6,256
Deferred revenue |  | 35,076 |  | 40,181
Coal Royalty Revenues [Member] | Accounts Receivable [Member] |  |  |  |
Contract with customer, current |  | 34,775 |  | 39,004
Coal Royalty Revenues [Member] | Other Current Assets [Member] |  |  |  |
Contract with customer, current | [1] | 2,382 |  | 0
Coal Royalty Revenues [Member] | Other Noncurrent Assets [Member] |  |  |  |
Contract with customer, noncurrent | [2] | $ 0 |  | $ 75
[1] | Other current assets, net includes short-term notes receivables from contracts with customers.
[2] | Other long-term assets, net includes long-term lease amendment fee receivables from contracts with customers.

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- Definition The amount of deferred revenue contractual minimum payments during the reporting period. + References No definition available. + Details
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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-8 + Details
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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-8 + Details
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