FAIR VALUE

12 Months Ended

Dec. 31, 2023

FAIR VALUE [Abstract]

FAIR VALUE

11. 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 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 consolidated statement of operations.

Bridge Note Warrant Liabilities

During 2019 and 2018, 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. 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; annual volatility of 71% to 77%; and risk free rate of 5.33 to 5.40%. As of December 31, 2022, assumptions used in the valuation of the Bridge Note Warrant Liabilities include: remaining life to maturity of 0.3 to 1.4 years; annual volatility of 69% to 77%; and risk free rate of 4.42% to 4.76%.

During the year ended December 31, 2023, the change in the fair value of the warrant liabilities measured using significant unobservable inputs (Level 3) was less than $1 thousand, respectively.

The change during the year ended December 31, 2022 was comprised of the following:

Dollars in Thousands
	Year Ended December 31, 2022
	Bridge Note
	Warrant Liabilities
Beginning balance at January 1	$	606
Total gains:
Revaluation recognized in earnings		(606)
Balance at December 31	$	–