Note 5 - Intangible Assets (Details) - Other Intangible Assets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	$ 69,831	$ 59,789
Less: accumulated amortization	(53,979)	(47,550)
Total other intangible assets, net	15,852	12,239
Customer-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	68,465	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	$ 406