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Note 14 - Subsequent Events	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	16. SUBSEQUENT EVENTS On May 5, 2023, the Company issued 2,858 shares of common stock to its directors in payment of board committee fees. On May 5, 2023, 14,375 shares of restricted common stock were cancelled as a result of employees leaving the Company before the vesting period was completed. On May 11, 2023, the Company issued 17,392 shares of common stock to its directors in payment of board fees. On May 11, 2023, the Company issued 2,900 shares of common stock to its directors in payment of board committee fees.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

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-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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