Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

			Fair Value Measurements at Reporting Date, Using:
Description	June 30, 2014		Quoted Prices in Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	107,907	$	107,907	$	—	$	—
Foreign currency forward contracts		630		—		630		—
Total assets	$	108,537	$	107,907	$	630	$	—
Purchase consideration payable	$	20,514	$	—	$	—	$	20,514
Total liabilities	$	20,514	$	—	$	—	$	20,514

Description	December 31, 2013		Quoted Prices in Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	34,178	$	34,178	$	—	$	—
Foreign currency forward contracts		208		—		208		—
Total assets	$	34,386	$	34,178	$	208	$	—
Purchase consideration payable	$	14,728	$	—	$	—	$	14,728
Total liabilities	$	14,728	$	—	$	—	$	14,728