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Note 6 - Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Stockholders Equity [Table Text Block]

						Three Months Ended March 31, 2021 (Unaudited)
		Common Stock				Treasury Stock				Additional Paid-In Capital				Accumulated Deficit				Total
January 1, 2021		$	39,748			$	(18,929,915	)		$	98,013,079			$	(50,676,351	)		$	28,446,561
Stock-based compensation			—				—				421,071				—				421,071
Stock issued			60				—				115,740				—				115,800
Net loss			—				—				—				(3,294,949	)			(3,294,949	)
March 31, 2021		$	39,808			$	(18,929,915	)		$	98,549,890			$	(53,971,300	)		$	25,688,483

						Three Months Ended March 31, 2020 (Unaudited)
		Common Stock				Treasury Stock				Additional Paid-In Capital				Accumulated Deficit				Total
January 1, 2020		$	39,613			$	(18,929,915	)		$	96,105,851			$	(41,351,078	)		$	35,864,471
Stock-based compensation			—				—				426,939				—				426,939
Stock issued			100				—				174,900				—				175,000
Net loss			—				—				—				(2,214,139	)			(2,214,139	)
March 31, 2020		$	39,713			$	(18,929,915	)		$	96,707,690			$	(43,565,217	)		$	34,252,271

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- Definition

Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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- References

No definition available.

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