Note 7 - Financial Instruments and Fair Value Measurements - Derivatives Recognized in Condensed Consolidation Financial Statements (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total		$ (3,916)	$ (2,846)	$ 1,144
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]
Derivative instruments designated as cash flow hedging instruments:	[1]	(5,062)
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Foreign exchange forward (c)	[2]	1,718	(2,175)	1,144
Interest Rate Cap [Member] | Designated as Hedging Instrument [Member]
Derivative instruments designated as cash flow hedging instruments:	[3]	$ (572)	$ (671)

[1] For the year ended December 31, 2019, $1.6 million was recognized as a loss on foreign currency in the condensed consolidated statements of income, and $3.4 million, was recognized, net of tax, as a component of other comprehensive income (loss) within stockholders' equity.

[2] Gains (losses) related to derivative instruments are expected to be largely offset by (losses) gains on the underlying exposures being hedged. During the years ended December 31, 2019, 2018 and 2017, a gain of $1.7 million, a loss of $2.2 million and a gain of $1.1 million, respectively, was recognized in gain (loss) on foreign currency.

[3] Recognized, net of tax, as a component of other comprehensive income (loss) within stockholders' equity.