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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

			Expected Volatility						Risk-free Interest Rate						Expected Term						Dividend Rate
December 31, 2022:
Employees			109%						2.8%						4						0		%
Officers and non-employee directors			91%						1.9%						7						0		%
December 31, 2021:
Employees			104%						0.7%						4						0		%
Officers and non-employee directors			90%						1.0%						6						0		%
December 31, 2020:
Employees			98%						1.3%						4						0		%
Officers and non-employee directors			85%						1.4%						7						0		%

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- References

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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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