Note 4 - Basic and Diluted Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Weighted average common shares outstanding, basic		5,502		5,477		5,497		5,469
Dilutive common equivalent shares		52		64		55		64
Weighted average common shares outstanding, diluted		5,554		5,541		5,552		5,533