Note 7 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Goodwill, Impairment Loss	$ 0	$ 4,500
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	0
Impairment of Intangible Assets, Finite-lived	$ 0	$ 0
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| One Customer of HCS [Member]
Concentration Risk, Percentage		20.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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