Note 2 - Summary of Significant Accounting Policies (Details) - Fair Values of the Company’s Financial Instruments (USD $) In Thousands, unless otherwise specified	Jul. 03, 2014	Jun. 30, 2014	Dec. 31, 2013
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Values of the Company’s Financial Instruments [Line Items]
Cash and cash equivalents		$ 107,907	$ 34,178
Foreign currency forward contracts	600	630	208
Total assets		108,537	34,386
Purchase consideration payable		20,514	14,728
Total liabilities		20,514	14,728
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Values of the Company’s Financial Instruments [Line Items]
Cash and cash equivalents		107,907	34,178
Total assets		107,907	34,178
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Values of the Company’s Financial Instruments [Line Items]
Foreign currency forward contracts		630	208
Total assets		630	208
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Values of the Company’s Financial Instruments [Line Items]
Purchase consideration payable		20,514	14,728
Total liabilities		$ 20,514	$ 14,728