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Note 18 - Subsequent Events	3 Months Ended
	Mar. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	18. SUBSEQUENT EVENTS On May 12, 2022, the Company issued 7,695 shares of common stock to its directors in payment of meeting fees. Additionally, the Company issued 1,250 shares of restricted stock with three-year vesting period to a new employee. All the shares were issued at $1.95 the closing price on May 12, 2022, as reported on the Nasdaq Capital Market.  On May 16, 2022, the Company issued 1,422 shares of common stock to its directors in payment of committee meeting fees. The Company has reviewed subsequent events through the date of this filing.

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- Definition

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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