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Stock Options (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of stock option

		Number of options				Weighted average exercise price				Weighted average contractual term (years)				Aggregate intrinsic value
Outstanding at January 1, 2021			2,595,700			$	1.92							$	2,491,026
Granted			568,278				2.50
Exercise			(21,333	)			0.80								48,496
Forfeited			(25,335	)			2.28								30,987
Outstanding at June 30, 2021			3,117,310				2.03				7.17				3,555,431
Vested and exercisable at June 30, 2021			2,084,461				2.01				7.19				2,635,699
Outstanding at January 1, 2020			2,004,318			$	1.72							$	2,542,361
Granted			634,756				2.58
Forfeited			(64,330	)			0.92								18,520
Expired			(3,333	)			0.79								3,166
Outstanding at June 30, 2020			2,571,411			$	1.95				7.94			$	1,165,626
Vested and exercisable at June 30, 2020			1,623,746			$	1.97				8.23			$	971,228

Schedule of measured fair value of each option award grant using the black-scholes-nerton (BSM) pricin

		Six Months ended
		June 30,
		2021				2020
Exercise price		$	2.38 to 2.97			$	1.74 to 2.89
Expected life			5 years				5 years
Expected volatility			93	%			71	%
Dividend yield			0				0	%
Risk-free interest rate			0.31% to 0.93	%			0.28% to 1.72	%

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
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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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