Note 13 - Interest and Other Income, Net (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Other Nonoperating Income (Expense) [Table Text Block]

	Three Months Ended March 31,
	2019			2018
Interest income	$	1,696		$	1,460
Amortization of premium on available-for-sale securities		(121	)		(435	)
Gain (loss) on deferred compensation plan investments		1,935			(186	)
Foreign currency exchange loss		(201	)		(399	)
Other		32			-
Total	$	3,341		$	440