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STOCK BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2024

STOCK BASED COMPENSATION

Summary of stock options outstanding

​

​	​	​	​	​	​	​	​	​	​	​
​	​	December 31, 2024				​	December 31, 2023
​		​		Weighted			​		Weighted
​	​	Number of	​	Average		​	Number of	​	Average
​	​	Stock	​	Exercise		​	Stock	​	Exercise
​	​	Options	​	Price		​	Options	​	Price
Stock options outstanding at beginning of period		424,826	​	$	2.66		356,296	​	$	5.06
Granted		224,519	​		0.49		117,637	​	​	1.01
Canceled or forfeited	​	—	​	​	—	​	(49,107)	​	​	16.07
Stock options outstanding at end of period		649,345	​	​	1.91		424,826	​	​	2.66
Stock options exercisable at end of period		424,826	​	$	2.66		307,189	​	$	3.29

Summary of assumptions used to assess the fair value of stock options granted

​

​	​	​	​	​	​	​
​	​	Years ended December 31,
​		2024			2023
Expected volatility	​	​	100%	​	​	99%
Expected term of options (years)	​	​	6	​	​	6
Expected dividend rate	​	​	—	​	​	—
Risk-free interest rate	​	​	4.63%	​	​	3.51%
Weighted-average grant-date fair value	​	$	0.39	​	$	0.81

Summary of restricted stock units activity

​

​	​	​	​	​	​	​	​	​	​	​
​	​	December 31,				​	December 31,
​	​	2024				​	2023
​		​		Weighted-			​		Weighted-
​	​	​	​	Average		​	​	​	Average
​	​	Number of	​	Grant Date		​	Number of	​	Grant Date
​	​	RSUs	​	Fair Value		​	RSUs	​	Fair Value
Unvested RSUs at beginning of period		1,773,058	​	$	1.03		1,207,872	​	$	1.40
Granted		3,235,731	​	​	0.49		1,516,091	​		0.99
Forfeited/Expired		(6,784)	​		3.93		(432,587)	​		1.67
Vested		(911,366)	​		1.03		(518,318)	​		1.16
Unvested RSUs at end of period		4,090,639	​	$	0.60		1,773,058	​	$	1.03

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Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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