Note 9 - Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments [Table Text Block]

	Local Currency Amount		U.S. Dollar Amount		Percentage Settled Within One Year			Dates Contracts are Through
Derivative Assets
Great Britain Pound	£	3,107	$	5,000		100	%	June 30, 2014

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

		March 31, 2014 U.S. Dollar Amount		December 31, 2013 U.S. Dollar Amount
Derivatives designated as hedging instruments:	Assets Balance Sheet Location
Foreign exchange contracts	Other current assets	$	178	$	163
Total derivative contracts		$	178	$	163