v3.25.4

Marketable Securities | 12 Months Ended
--- | ---
Dec. 31, 2025
Marketable Securities |
Marketable Securities | 5. Marketable Securities ​ Marketable securities consist of the following:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2025
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Estimated
(in thousands) | ​ ​ ​ | Cost | ​ ​ ​ | Gain | ​ ​ ​ | Loss | ​ ​ ​ | Fair Value
Corporate bonds | ​ | $ | 15,818 | ​ | $ | 19 | ​ | $ | (1) | ​ | $ | 15,836
Total | ​ | $ | 15,818 | ​ | $ | 19 | ​ | $ | (1) | ​ | $ | 15,836
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Estimated
(in thousands) | ​ ​ ​ | Cost | ​ ​ ​ | Gain | ​ ​ ​ | Loss | ​ ​ ​ | Fair Value
Corporate bonds | ​ | $ | 32,515 | ​ | $ | 22 | ​ | $ | (20) | ​ | $ | 32,517
U.S. Treasury and Government agencies | ​ | ​ | 8,375 | ​ | ​ | 2 | ​ | ​ | — | ​ | ​ | 8,377
Total | ​ | $ | 40,890 | ​ | $ | 24 | ​ | $ | (20) | ​ | $ | 40,894
​ The Company uses the specific identification method when calculating realized gains and losses. The Company did not realize any gains or losses on available-for-sale securities for the years ended December 31, 2025 and 2024. The Company reviewed all investments which were in a loss position at the respective balance sheet dates, as well as the remainder of the portfolio. As of December 31, 2025, the Company had one investment with a total fair market value of $2.2 million in an immaterial loss position which was not in a continuous unrealized loss position for more than twelve months. The Company analyzed the unrealized loss and determined that market conditions were the primary factor driving the change, and such unrealized loss is temporary as the Company anticipates a full recovery of the amortized cost basis of this security at maturity. After analyzing the security in an unrealized loss position, the portion of the loss that relate to changes in credit quality is insignificant. The Company does not intend to sell this security, nor is it more likely than not that the Company will be required to sell it prior to the end of its contractual term. Furthermore, the Company does not believe that this security exposes the Company to undue market risk or counterparty credit risk. The following table summarizes maturities of the Company’s investments available-for-sale as of December 31, 2025:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2025
​ | ​ | ​ | ​ | ​ | Fair
(in thousands) | ​ ​ ​ | Cost | ​ ​ ​ | Value
Maturities: | ​ | ​ | ​ | ​ | ​ | ​
Within 1 year | ​ | $ | 14,593 | ​ | $ | 14,607
Over 1 year | ​ |  | 1,225 | ​ |  | 1,229
Total investments available-for-sale | ​ | $ | 15,818 | ​ | $ | 15,836
​ The Company has classified all of its investments available-for-sale, including those with maturities beyond one year, as current assets on the accompanying balance sheets based on the highly liquid nature of these investment securities and because these investment securities are considered available for use in current operations. The Company has elected to report interest receivable from its marketable securities with prepaid expenses and other current assets on its balance sheet. Interest receivable included in prepaid expenses and other current assets totaled $0.1 million and $0.3 million as of December 31, 2025 and 2024, respectively.

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/940-320/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph b -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/320/tableOfContent Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-10 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6B Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6B Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/942-320/tableOfContent + Details
Name: | us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration