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Note 5 - Goodwill and Other Intangible Assets - Intangible Assets Other Than Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Intangible Assets with finite lives:
Gross	$ 21,509	$ 4,580
Accumulated amortization	(2,425)	(1,925)
Net	$ 19,084	2,655
Minimum [Member]
Intangible Assets with finite lives:
Useful life (Year)	2 years
Maximum [Member]
Intangible Assets with finite lives:
Useful life (Year)	10 years
Marketing-Related Intangible Assets [Member]
Intangible Assets with finite lives:
Gross	$ 930	930
Accumulated amortization	(341)	(248)
Net	$ 589	682
Useful life (Year)	10 years
Weighted average useful life remaining (Year)	6 years 109 days
Noncompete Agreements [Member]
Intangible Assets with finite lives:
Gross	$ 270	190
Accumulated amortization	(190)	(190)
Net	$ 80
Weighted average useful life remaining (Year)	5 years
Noncompete Agreements [Member] | Minimum [Member]
Intangible Assets with finite lives:
Useful life (Year)	2 years
Noncompete Agreements [Member] | Maximum [Member]
Intangible Assets with finite lives:
Useful life (Year)	5 years
Trade Secrets [Member]
Intangible Assets with finite lives:
Gross	$ 250	250
Accumulated amortization	(183)	(133)
Net	$ 67	117
Useful life (Year)	5 years
Weighted average useful life remaining (Year)	1 year 109 days
Trade Names [Member]
Intangible Assets with finite lives:
Gross	$ 1,080
Accumulated amortization
Net	$ 1,080
Useful life (Year)	2 years
Weighted average useful life remaining (Year)	2 years
Internally Developed Software [Member]
Intangible Assets with finite lives:
Gross	$ 680	680
Accumulated amortization	(680)	(604)
Net		76
Useful life (Year)	3 years
Computer Software, Intangible Asset [Member]
Intangible Assets with finite lives:
Gross	$ 8,229
Accumulated amortization
Net	$ 8,229
Useful life (Year)	10 years
Weighted average useful life remaining (Year)	10 years
Customer Relationships [Member]
Intangible Assets with finite lives:
Gross	$ 10,070	2,530
Accumulated amortization	(1,031)	(750)
Net	$ 9,039	$ 1,780
Weighted average useful life remaining (Year)	5 years 146 days
Customer Relationships [Member] | Minimum [Member]
Intangible Assets with finite lives:
Useful life (Year)	6 years
Customer Relationships [Member] | Maximum [Member]
Intangible Assets with finite lives:
Useful life (Year)	9 years

X

- Definition

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.

+ References

No definition available.

+ Details

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- 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

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 after 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

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

+ References

No definition available.

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