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Fair Value
12 Months Ended
Dec. 31, 2023
Fair Value [Abstract]  
Fair Value
(3)
Fair Value
 
The Company applies a fair value hierarchy that requires the use of observable market data, when available, and prioritizes the inputs to valuation techniques used to measure fair value in the following categories:
 
Level 1 – Valuation is based upon quoted prices for identical instruments traded in active markets.
 
Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for Identical or similar instruments in markets that are not active, and model‑based valuation techniques for which all significant assumptions are observable in the market.
 
Level 3 – Valuation is generated from model‑based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s own estimates of assumptions market participants would use in pricing the asset or liability.
 
The Company’s options on common stock and warrants are classified as equity instruments and are measured at fair value at issue date. The Company values the options based on the Black‑Scholes option pricing model. The Company uses unobservable inputs for the model’s assumptions, including management’s assumptions of the Company’s volatility and price of the underlying stock. The Company’s convertible notes are measured at fair value at each reporting period. See Notes 7, 9 and 10 for additional information.