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EQUITY INCENTIVE PLAN (Tables)

9 Months Ended

Sep. 30, 2021

EQUITY INCENTIVE PLAN [Abstract]

Summary of stock option activity

The following table summarizes stock option activity under our plans during the nine months ended September 30, 2021:

​

​	​	​	​	​	​
​		Number of		Weighted-Average
​	​	Options	​	Exercise Price
Outstanding at January 1, 2021		822,992	​	$	4.46
Granted		1,907,347	​		2.89
Exercised	​	(1,229)	​	​	2.04
Forfeited		(81,594)	​		2.83
Outstanding at September 30, 2021		2,647,516	​	$	3.38
Exercisable at September 30, 2021		633,027	​	$	4.91

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Tabular disclosure of share-based payment arrangement.

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