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Loans and Convertible Notes Payable (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Summary of Loans and Convertible Notes Payable

		September 30, 2021												December 31, 2020
		Gross				Discount				Net				Gross				Discount				Net
Loan - Avenue [1]		$	12,638			$	(1,804	)		$	10,834			$	-			$	-			$	-
Convertible Note Payable - Rosalind		$	2,000			$	—			$	2,000			$	2,000			$	—			$	2,000
Convertible Loan Payable - Avenue			3,000				(398	)			2,602				—				—				—
		$	5,000			$	(398	)		$	4,602			$	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, 2021		$	-			$	-			$	-
Year ended December 31, 2022			571				143				714
Year ended December 31, 2023			6,857				1,714				8,571
Year ended December 31, 2024			5,210				3,143				8,353
Total		$	12,638			$	5,000			$	17,638

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

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:

		Three months ended September 30,					Nine months ended September 30,
		2021			2020		2021			2020
Expected term (years)		5.1 - 6.3			N.A.		5.1 - 6.3			N.A.
Expected volatility		179.2% - 181.3%			N.A.		178.3% - 181.3%			N.A.
Risk-free interest rate		0.74% - 1.10%			N.A.		0.74% - 1.10%			N.A.
Expected dividends		0.00%			N.A.		0.00%			N.A.

Summary of Various Notes Issued

		Conversion price				Current interest rate				Principal
Convertible notes payable
July 2019 Notes - Rosalind  (maturity date - October 30, 2024)1		$	1,198			8.00%				$	2,000
August 2021 Note - Avenue (maturity date - August 1, 2024)		$	12			10.95%				$	3,000

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