Note 7 - Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

		Fair Value of Derivative Instruments
	Balance Sheet Location	March 31, 2016		December 31, 2015
Derivative Assets (Liabilities)
Foreign exchange forward and options contracts	Accrued expenses and other accounts payable	$	-	$	(36	)
	Other accounts receivable and prepaid expenses		162		-
		$	162	$	(36	)

Derivative Instruments, Gain (Loss) [Table Text Block]

	Gains (Losses) on Derivatives Recognized in OCI
	for the three months ended March 31,
	2016		2015
Foreign exchange forward and option contracts	$	168	$	(292	)

	Gains (Losses) Reclassified from OCI into Income
		for the three months ended March 31
	Location	2016			2015
Foreign exchange forward and option contracts	Operating expenses	$	(29	)	$	(480	)