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Cash, Cash Equivalents and Investments - Recurring Basis (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Assets, Fair Value Disclosure [Abstract] |  |
Investments, amortized cost | $ 2,140,000 | $ 11,457,000
Fair Value, Transfer Between Level 1 and Level 2, Description and Policy [Abstract] |  |
Transfer from Level 1 to Level 2 , assets | 0 |
Transfers into Level 3, assets | 0 | 0
Transfer out of Level 3, assets | 0 | 0
Recurring |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total | 2,140,000 | 11,457,000
Recurring | Certificates of deposit. |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash and cash equivalents, fair value disclosure | 2,140,000 | 6,265,000
Recurring | Corporate bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Investments, amortized cost |  | 5,192,000
Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total | 2,140,000 | 11,457,000
Recurring | Significant Other Observable Inputs (Level 2) | Certificates of deposit. |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash and cash equivalents, fair value disclosure | $ 2,140,000 | 6,265,000
Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Investments, amortized cost |  | $ 5,192,000

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
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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. + Details
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