Note 2 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Weighted average common shares outstanding - basic		10,421,383		10,355,673		10,405,892		10,341,552
Potentially dilutive securities:
Unvested shares of restricted stock and employee stock options		8,153		-		17,229		35,953
Weighted average common shares and common share equivalents outstanding - diluted		10,429,536		10,355,673		10,423,121		10,377,505
Average number of potentially dilutive securities excluded from calculation		657,969		360,970		501,964		188,339