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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Stockholders' Equity [Abstract]

Restricted Stock Activity

	Shares		Weighted ‎average grant ‎date fair value
Unvested at December 31, 2021	65,100		$	4.10
Granted	240,777			1.52
Vested	(121,232)			2.14
Forfeited	—			—
Unvested at March 31, 2022	184,645		$	2.03

Stock Option Activity

	Number of ‎options		Weighted ‎average ‎exercise price
Outstanding at December 31, 2021	663,425		$	4.31
Issued	209,755			1.55
Exercised	—			—
Forfeited	—			—
Expired	—			—
Outstanding at March 31, 2022	873,180		$	3.65
Exercisable at March 31, 2022	624,075		$	4.31

Stock Option Grants Weighted Average Assumptions

		2022
Expected volatility		103%
Risk free interest rate		2.10%
Expected dividend yield		0%
Expected life (in years)		5

Information About Options Outstanding and Exercisable

Weighted ‎average exercise ‎price of outstanding ‎options		Number of ‎options ‎outstanding		Weighted ‎average remaining ‎estimated life ‎(in years)		Number of ‎options ‎exercisable
$1.52 - $2.50		732,288		7.9		503,779
$5.44 - $6.72		55,402		8.2		34,789
$7.50 - $10.80		16,403		2.1		16,403
$14.20 - $23.40		69,087		4.0		69,087
		873,180				624,058

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

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