Note 4 - Intangible Assets (Details) - Other Intangible Assets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	$ 69,171	$ 59,789
Less: accumulated amortization	(49,509)	(47,550)
Total other intangible assets, net	19,662	12,239
Customer-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	67,792	58,829
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	960	960
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	$ 419