Note 2 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Weighted Average Number of Shares [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Weighted average common shares outstanding - basic		10,269,995		10,421,383		10,247,779		10,405,892
Potentially dilutive securities:
Unvested shares of restricted stock and employee stock options		17,567		8,153		-		17,229
Weighted average common shares and common share equivalents outstanding - diluted		10,287,562		10,429,536		10,247,779		10,423,121
Average number of potentially dilutive securities excluded from calculation		631,392		657,969		722,538		501,964