Warrant Transaction Agreements (Tables)

12 Months Ended

Dec. 31, 2022

2022 Amazon transaction agreement

Schedule of warranty assumptions

	Tranches 1-3	Tranche 4
	August 24, 2022	December 31, 2022
Risk-free interest rate	3.15%	3.88%
Volatility	75.00%	75.00%
Expected average term	7 years	4 years
Exercise price	$22.98	$11.13
Stock price	$20.36	$12.37

Warrants issued with the Amazon, Inc transaction agreement

Schedule of warranty assumptions

	December 31, 2020	November 2, 2020
Risk-free interest rate	0.58%	0.58%
Volatility	75.00%	75.00%
Expected average term	6.26	6.42
Exercise price	$13.81	$13.81
Stock price	$33.91	$15.47

Warrants issued with the Walmart Stores, Inc transaction agreement

Schedule of warranty assumptions

	January 1, 2019
Risk-free interest rate	2.63%
Volatility	95.00%
Expected average term	8.55
Exercise price	$2.12
Stock price	$1.24

Tranche one of warrants issued with the Walmart Stores Inc transaction agreement

Schedule of warranty assumptions

	December 31, 2022
Risk-free interest rate	3.92%
Volatility	75.00%
Expected average term	3.5 years
Exercise price	$11.13
Stock price	$12.37