Note 3 - Goodwill and Intangible Assets - Intangible Asset Summaries (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Carrying Value	$ 43,755	$ 43,755
Accumulated Amortization	(42,836)	(42,427)
Net Book Value	919	1,328
Customer Relationships [Member]
Carrying Value	24,025	24,025
Accumulated Amortization	(23,110)	(22,705)
Net Book Value	915	1,320
Customer Contracts [Member]
Carrying Value	19,600	19,600
Accumulated Amortization	(19,600)	(19,600)
Net Book Value
Noncompete Agreements [Member]
Carrying Value	107	107
Accumulated Amortization	(107)	(105)
Net Book Value		2
Trade Names [Member]
Carrying Value	23	23
Accumulated Amortization	(19)	(17)
Net Book Value	$ 4	$ 6

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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