Note 7 - Goodwill and Other Intangible Assets, Net Schedule of Acquired Finite-Lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 102,858	$ 205
Finite-Lived Intangible Assets, Accumulated Amortization	(6,550)	0
Finite-Lived Intangible Assets, Net	96,308	205
Business Acquisition, Goodwill and Other Intangible Assets, Expected Number of Years For Tax Deduction	15 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	79,203
Finite-Lived Intangible Assets, Accumulated Amortization	(2,917)
Finite-Lived Intangible Assets, Net	76,286
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	8,970	200
Finite-Lived Intangible Assets, Accumulated Amortization	(797)	0
Finite-Lived Intangible Assets, Net	8,173	200
Technology-Based Intangible Assets [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years
Technology-Based Intangible Assets [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,860
Finite-Lived Intangible Assets, Accumulated Amortization	(393)
Finite-Lived Intangible Assets, Net	7,467
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
Order or Production Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	6,680
Finite-Lived Intangible Assets, Accumulated Amortization	(2,406)
Finite-Lived Intangible Assets, Net	4,274
Order or Production Backlog [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years
Order or Production Backlog [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	145	5
Finite-Lived Intangible Assets, Accumulated Amortization	(37)	0
Finite-Lived Intangible Assets, Net	$ 108	$ 5
Noncompete Agreements [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	2 years
Noncompete Agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years