Note 4 - Goodwill and Intangible Assets (Details) - Intangible assets (USD $) In Thousands, unless otherwise specified						12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Customer Relationships [Member]	Dec. 31, 2012 Customer Relationships [Member]	Dec. 31, 2013 Noncompete Agreements [Member]	Dec. 31, 2012 Noncompete Agreements [Member]	Dec. 31, 2013 Trade Names [Member]	Dec. 31, 2012 Trade Names [Member]	Dec. 31, 2013 Minimum [Member] Customer Relationships [Member]	Dec. 31, 2012 Minimum [Member] Customer Relationships [Member]	Dec. 31, 2013 Minimum [Member] Trade Names [Member]	Dec. 31, 2012 Minimum [Member] Trade Names [Member]	Dec. 31, 2013 Maximum [Member] Customer Relationships [Member]	Dec. 31, 2012 Maximum [Member] Customer Relationships [Member]	Dec. 31, 2013 Maximum [Member] Trade Names [Member]	Dec. 31, 2012 Maximum [Member] Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross	$ 57,593	$ 57,799
Net	57,593	57,799	57,730
Gross	1,191	1,191
Net	1,191	1,191
Useful Life						3 years	3 years			5 years	5 years	5 years	5 years	15 years	15 years	10 years	10 years
Gross				10,499	10,521
Accumulated Amortization	9,182	8,250		7,334	6,709	430	346	1,418	1,195
Net	3,649	4,603		3,165	3,812		84	484	707
Useful Life						3 years	3 years			5 years	5 years	5 years	5 years	15 years	15 years	10 years	10 years
Gross						430	430
Useful Life						3 years	3 years			5 years	5 years	5 years	5 years	15 years	15 years	10 years	10 years
Gross								1,902	1,902
Gross	12,831	12,853
Accumulated Amortization	9,182	8,250		7,334	6,709	430	346	1,418	1,195
Gross	14,022	14,044
Net	$ 4,840	$ 5,794