Note 3 - Supplemental Balance Sheet Information (in thousands) (Details) - Intangible Assets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Intangible Assets [Abstract]
Customer contracts and lists	$ 4,507	$ 3,047
Less accumulated amortization	(1,358)	(788)
	$ 3,149us-gaap_FiniteLivedIntangibleAssetsNet	$ 2,259us-gaap_FiniteLivedIntangibleAssetsNet

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

+ Details

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

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