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Common Shares (Tables)

3 Months Ended

Mar. 31, 2024

Common Shares

Summary of outstanding warrants

Warrant activity is summarized in the following table.

​

​	​	​	​	​	​	​	​	​
​	​	​	​	Weighted		​	Weighted	​
​	​	​	​	Average		​	Average	​
​	​	Warrants	​	Exercise Price		​	Remaining Life	​
​		Outstanding		Per Share			(Years)
As of December 31, 2022	​	7,408,101	​	$	1.25	​	1.5	​
As of December 31, 2023	​	7,408,101	​	$	1.25	​	0.5	​
As of March 31, 2024	​	7,408,101	​	$	1.25	​	0.3	​

Summary of stock-based compensation expense

Stock-based compensation expense was: 

​

​	​	​	​	​	​	​	​
​	​	Three Months Ended March 31,					​
​		2024			2023
RSUs	​	$	83	​	$	76	​
DSUs	​	​	208	​	​	103	​
​	​	$	291	​	$	179	​

Summary of restricted stock unit activity

The following table summarizes RSU activity:

​	​	​	​	​	​	​
​	​	​	​	Weighted Average		​
​	​	Number	​	Grant-Date Fair		​
​		of RSUs		Value Per RSU		​
Unvested - December 31, 2022	​	1,472,008		$	0.60
Granted	​	1,163,000	​	​	0.37	​
Cancelled/forfeited	​	(335,786)	​	​	0.58	​
Vested, net of shares withheld	​	(412,548)	​	​	0.60	​
Unvested - December 31, 2023	​	1,886,674		$	0.46
Granted	​	1,630,000	​	​	0.24	​
Cancelled/forfeited	​	(403,782)	​	​	0.50	​
Vested, net of shares withheld	​	(445,551)	​	​	0.59	​
Unvested - March 31, 2024	​	2,667,341	​	$	0.30	​

Summary of deferred stock units

The following table summarizes DSU activity:

​	​	​	​	​	​	​
​	​	​	​	​	​	​
​	​	​	​	​	Weighted Average	​
​	​	Number of	​	​	Grant-Date Fair	​
​		DSUs		​	Value per DSU
Outstanding - December 31, 2022	​	1,254,000	​	$	0.72	​
Granted	​	420,000	​	​	0.58	​
Shares issued to participants	​	(485,000)	​	​	0.69	​
Outstanding - December 31, 2023	​	1,189,000	​	$	0.68	​
Granted	​	612,000	​	​	0.34	​
Outstanding - March 31, 2024	​	1,801,000	​	$	0.57	​

Summary of option activity

The following table summarizes option activity for vested awards:

​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​		​	Weighted Average	​	​		​
​	​	​	​	Weighted Average		​	Remaining	​	Aggregate		​
​	​	Number of	​	Exercise Price		​	Contractual Term	​	Intrinsic		​
​		Options		Per Option			(Years)		Value
Outstanding - December 31, 2022	​	1,367,000		$	0.71	​	0.64	​	$	—	​
Expired	​	(967,000)	​	​	0.71	​	​	​	​	​	​
Outstanding - December 31, 2023	​	400,000		$	0.70	​	0.47	​	$	—	​
Outstanding - March 31, 2024	​	400,000	​	$	0.70	​	0.25	​	$	3	​
​	​	​	​	​	​	​	​	​	​	​	​
Exercisable - March 31, 2024	​	400,000	​	$	0.70	​	0.25	​	$	3	​

​

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