FAIR VALUE	9 Months Ended
Sep. 30, 2024
FAIR VALUE [Abstract]
FAIR VALUE	8. FAIR VALUE FASB guidance on fair value measurements, which defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements for our financial assets and liabilities, as well as for other assets and liabilities that are carried at fair value on a recurring basis in our condensed consolidated financial statements. FASB guidance establishes a three-level fair value hierarchy based upon the assumptions (inputs) used to price assets or liabilities. The three levels of inputs used to measure fair value are as follows: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Observable inputs other than those included in Level 1, such as quoted prices for similar assets and liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets; and Level 3—Unobservable inputs reflecting our own assumptions and best estimate of what inputs market participants would use in pricing the asset or liability. Common Stock Warrant Liabilities. Certain of our issued and outstanding warrants to purchase shares of common stock do not qualify to be treated as equity and, accordingly, are recorded as a liability. We are required to record these instruments at fair value at each reporting date and changes are recorded as a non-cash adjustment to earnings. The gains or losses included in earnings are reported in other income (expense) in our condensed consolidated statements of operations. Bridge Note Warrant Liabilities During 2018 and 2019, the Company issued warrants in connection with the issuance of convertible notes. All of these warrants issuances were classified as warrant liabilities (the “Bridge Note Warrant Liabilities”). The Bridge Note Warrant Liabilities are considered Level 3 financial instruments and were valued using the Black Scholes model. During the nine months ended September 30, 2024, the last remaining warrants related to Bridge Note Warrant Liabilities expired and thus at September 30, 2024 there were no warrant liabilities to be valued. As of December 31, 2023, assumptions used in the valuation of the Bridge Note Warrant Liabilities include: remaining life to maturity of 0.3 to 0.4 years; volatility rate of 71% to 77%; and risk free rate of 5.33% to 5.40%. During the three and nine months ended September 30, 2024, the changes in the fair value of the warrant liabilities measured using significant unobservable inputs (Level 3) were zero. During the three and nine months ended September 30, 2023, the changes in the fair value of the warrant liabilities were less than $1 thousand, respectively.

FAIR VALUE

9 Months Ended

Sep. 30, 2024

8. FAIR VALUE

FASB guidance on fair value measurements, which defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements for our financial assets and liabilities, as well as for other assets and liabilities that are carried at fair value on a recurring basis in our condensed consolidated financial statements.

FASB guidance establishes a three-level fair value hierarchy based upon the assumptions (inputs) used to price assets or liabilities. The three levels of inputs used to measure fair value are as follows:

Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities;

Level 2—Observable inputs other than those included in Level 1, such as quoted prices for similar assets and liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets; and

Level 3—Unobservable inputs reflecting our own assumptions and best estimate of what inputs market participants would use in pricing the asset or liability.

Common Stock Warrant Liabilities.

Certain of our issued and outstanding warrants to purchase shares of common stock do not qualify to be treated as equity and, accordingly, are recorded as a liability. We are required to record these instruments at fair value at each reporting date and changes are recorded as a non-cash adjustment to earnings. The gains or losses included in earnings are reported in other income (expense) in our condensed consolidated statements of operations.

Bridge Note Warrant Liabilities

During 2018 and 2019, the Company issued warrants in connection with the issuance of convertible notes. All of these warrants issuances were classified as warrant liabilities (the “Bridge Note Warrant Liabilities”).

The Bridge Note Warrant Liabilities are considered Level 3 financial instruments and were valued using the Black Scholes model. During the nine months ended September 30, 2024, the last remaining warrants related to Bridge Note Warrant Liabilities expired and thus at September 30, 2024 there were no warrant liabilities to be valued. As of December 31, 2023, assumptions used in the valuation of the Bridge Note Warrant Liabilities include: remaining life to maturity of 0.3 to 0.4 years; volatility rate of 71% to 77%; and risk free rate of 5.33% to 5.40%.

During the three and nine months ended September 30, 2024, the changes in the fair value of the warrant liabilities measured using significant unobservable inputs (Level 3) were zero. During the three and nine months ended September 30, 2023, the changes in the fair value of the warrant liabilities were less than $1 thousand, respectively.