Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

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

	Three Months Ended June 30,				Six Months Ended June 30,
	201 9		201 8		201 9		201 8
Weighted average common shares outstanding - basic		10,411,276		10,342,674		10,398,147		10,334,492
Potentially dilutive securities:
Unvested shares of restricted stock and employee stock options		-		27,644		21,767		33,320
Weighted average common shares and common share equivalents outstanding - diluted		10,411,276		10,370,318		10,419,914		10,367,812
Average number of potentially dilutive securities excluded from calculation		618,071		275,831		423,962		189,794