Note 4 - Miscellaneous Other Income - Miscellaneous Other Income (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Royalty Income - Non-Operated Coal	$ 1,601	$ 4,504
Interest Income	858	244
Rental Income	215	497
Contract Buyout	0	10,825
Other	515	100
Miscellaneous Other Income	$ 3,189	$ 16,170

Represents information related to royalty income no-operated coal.

No definition available.

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- Definition

Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.

+ References

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- Definition

Amount of interest income earned from interest bearing assets classified as other.

+ References

No definition available.

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- Definition

Amount of revenue and income classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section S99
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- Definition

Amount of income related to nonoperating activities, classified as other.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature.

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