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Note 7 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Three months ended June 30,									Six Months ended June 30,
		2022				2021					2022					2021
Risk-free interest rate			n/a			0.77%	-	0.87%			1.91%	-	2.41%			0.46%	-	0.92%
Dividend yield			n/a				0%					0%					0%
Expected term (years)			n/a				5.00				5.75	-	6.00				5.00
Expected volatility			n/a			47.1%	-	47.7%			45.8%	-	46.1%			47.1%	-	92.6%

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- References

No definition available.

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