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Note F - Common Stock and Warrants - Reserved Authorized Shares of Common Stock for Future Issuance (Details) - shares	Sep. 30, 2022	Dec. 31, 2021
Common shares reserved for future issuance (in shares)	12,575,728	11,236,414
Warrant [Member]
Common shares reserved for future issuance (in shares)	4,252,600	4,252,600
Share-Based Payment Arrangement [Member]
Common shares reserved for future issuance (in shares)	2,463,509	1,273,879
Possible Future Issuances Under Equity Incentive Plans [Member]
Common shares reserved for future issuance (in shares)	4,414,406	4,209,935
Possible Future Issuances Under Employee Stock Purchase Plans [Member]
Common shares reserved for future issuance (in shares)	1,445,213	1,500,000

X

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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