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Cash Equivalents (Schedule of Cash Equivalents) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Cash And Cash Equivalents [Line Items]
Cash equivalents	$ 3,458	$ 40,437	$ 44,784	$ 76,110
Cost [Member]
Cash And Cash Equivalents [Line Items]
Cash equivalents	413	6,954
Cost [Member] | Institutional Money Market Funds [Member]
Cash And Cash Equivalents [Line Items]
Cash equivalents	413	6,954
Estimated Fair Value [Member]
Cash And Cash Equivalents [Line Items]
Cash equivalents	413	6,954
Estimated Fair Value [Member] | Institutional Money Market Funds [Member]
Cash And Cash Equivalents [Line Items]
Cash equivalents	$ 413	$ 6,954

X

- Definition

Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
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-Section 45
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-Name Accounting Standards Codification
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-Publisher FASB
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- Definition

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

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