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

9 Months Ended

Sep. 30, 2018

Notes Tables

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Weighted average common shares outstanding, basic		5,507		5,491		5,500		5,476
Dilutive common equivalent shares		48		73		52		64
Weighted average common shares outstanding, diluted		5,555		5,564		5,552		5,540