Warrants

12 Months Ended

Dec. 31, 2021

Warrants

Warrants

14. Warrants

Warrants outstanding and warrant activity for the year ended December 31, 2021 are as follows:

Description	Classification	Exercise Price		Expiration Date	Warrants Issued		Balance December 31, 2020		Warrants Cancelled/ Expired		Balance December 31, 2021
Private Placement Warrants, issued January 25, 2017	Equity	$	46.90	June 2022		85,500		85,500		-		85,500
RedPath Warrants, issued March 22, 2017	Equity	$	46.90	September 2022		10,000		10,000		-		10,000
Underwriters Warrants, issued June 21, 2017	Liability	$	13.20	December 2022		57,500		53,500		-		53,500
Base & Overallotment Warrants, issued June 21, 2017	Equity	$	12.50	June 2022		1,437,500		870,214		-		870,214
Warrants issued October 12, 2017	Equity	$	18.00	April 2022		320,000		320,000		-		320,000
Underwriters Warrants, issued January 25, 2019	Equity	$	9.40	January 2022		65,434		65,434		-		65,434
						1,975,934		1,404,648		-		1,404,648

The weighted average exercise price of the warrants is $15.97 and the weighted average remaining contractual life is approximately 0.4 years.