Note 3 - Intangible Assets and Goodwill - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Net Carrying Amount	$ 33,470	$ 37,797
Gross Value	121,259	121,259
Accumulated Amortization	(87,789)	(83,462)
Customer Relationships [Member]
Net Carrying Amount	27,541	31,176
Gross Value	103,090	103,090
Accumulated Amortization	$ (75,549)	$ (71,914)
Customer Relationships [Member] \| Minimum [Member]
Useful Life (Year)	5 years	5 years
Customer Relationships [Member] \| Maximum [Member]
Useful Life (Year)	10 years	10 years
Trade Names [Member]
Net Carrying Amount	$ 3,967	$ 4,543
Gross Value	15,936	15,936
Accumulated Amortization	$ (11,969)	$ (11,393)
Trade Names [Member] \| Minimum [Member]
Useful Life (Year)	3 years	3 years
Trade Names [Member] \| Maximum [Member]
Useful Life (Year)	5 years	5 years
Intellectual Property [Member]
Net Carrying Amount	$ 1,855	$ 1,960
Gross Value	2,100	2,100
Accumulated Amortization	$ (245)	$ (140)
Intellectual Property [Member] \| Minimum [Member]
Useful Life (Year)	3 years	3 years
Intellectual Property [Member] \| Maximum [Member]
Useful Life (Year)	7 years	7 years
Restrictive Covenant [Member]
Net Carrying Amount	$ 107	$ 118
Gross Value	133	133
Accumulated Amortization	$ (26)	$ (15)
Restrictive Covenant [Member] \| Minimum [Member]
Useful Life (Year)	3 years	3 years
Restrictive Covenant [Member] \| Maximum [Member]
Useful Life (Year)	5 years	5 years

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration

- Definition

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=66006027&loc=d3e16323-109275

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- Definition

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

+ References

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- Definition

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

+ References

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