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Loans and Convertible Notes Payable (Tables)

12 Months Ended

Aug. 06, 2021

Dec. 31, 2021

Debt Disclosure [Abstract]

Summary of Loans and Convertible Notes Payable

		December 31,
		2021												2020
		Gross				Discount				Net				Gross				Discount				Net
Loan - Avenue [1]			12,638				(1,645	)			10,993				—				—				—
Loan - Avenue [1] - Less Current Portion			(714	)			93				(621	)			—				—				—
Total - Loans Payable, Non-Current		$	11,924			$	(1,552	)		$	10,372			$	—			$	—			$	—
Convertible Note Payable - Rosalind			2,000				—				2,000				2,000				—				2,000
Convertible Portion of Loan Payable - Avenue			3,000				(361	)			2,639				—				—				—
Total - Convertible Notes Payable - Non-Current		$	5,000			$	(361	)		$	4,639			$	2,000			$	—			$	2,000
[1]  The gross amount includes the 4.25% final payment of $637.5.

Summary of Remaining Maturities of Company's Loan and Convertible Note Payables

Remaining maturities of the Company’s loan and convertible note payables are as follows:

		Loans				Convertible Notes				Total
Year ended December 31, 2022		$	714			$	—			$	714
Year ended December 31, 2023			8,571				—				8,571
Year ended December 31, 2024			3,353				5,000				8,353
Total		$	12,638			$	5,000			$	17,638

Summary of Avenue Warrant Valued Using the Black-Scholes Option Pricing Method

date market price of the Company’s common stock. Interest expense incurred was $675 for the year ended December 31, 2021.

The Avenue Warrant was valued at issuance at $1,309 using the Black-Scholes option pricing method using the following assumptions:

		August 6, 2021
Contractual term (years)			5.07
Expected volatility			187.0	%
Risk-free interest rate			0.77	%
Expected dividends			0.00	%

The Company values stock options using the Black-Scholes option pricing model and used the following assumptions during the reporting periods:

		Years ended December 31,
		2021		2020
Expected terms (years)		5.13 - 6.27		5.77
Expected volatility		177.52% - 181.33%		181.00%
Risk-free interest rate		0.74% - 1.31%		0.27% - 0.40%
Expected dividends		0.00%		0.00%

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