The number of shares received for consideration.

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- Definition

The fair value adjustments to long lived assets.

+ References

No definition available.

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Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Balance held at close of period in number of shares.

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-Topic 946
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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Fair value measurements (Details) - USD ($)		3 Months Ended
Fair value measurements (Details) - USD ($)	Dec. 04, 2020	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Fair value measurements
Changes in estimates, and other		$ (6,000)
Fair value Assumptions
Fair value adjustments to long lived assets		0	$ 0
Fabled Copper Corp. \| Sale, not discontinued operations \| Binding Letter of Intent Agreement
Fair value Assumptions
Consideration Received in Shares \| shares	1,000,000
Fair Value, Inputs, Level 1 [Member] \| Fabled Copper Corp. \| Binding Letter of Intent Agreement
Fair value Assumptions
Investment shares held (in shares)	200,000
Fair Value, Measurements, Recurring [Member]
Fair value measurements
Cash and cash equivalents		2,001,000		$ 3,972,000
Short-term investments		12,000		20,000
Assets		2,013,000		3,992,000
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value measurements
Cash and cash equivalents		2,001,000		3,972,000
Short-term investments		12,000		20,000
Assets		$ 2,013,000		$ 3,992,000