Note 2 - Other Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Capitalized Computer Software, Net, Ending Balance	$ 22,000
Capitalized Computer Software, Accumulated Amortization	31,100
Capitalized Computer Software, Amortization	11,100	$ 900	$ 900
Indefinite-Lived Franchise Rights	7,000	$ 7,000
Goodwill and Intangible Asset Impairment, Total	0
Components of ERP Platform Rquired Replacement [Member]
Capitalized Computer Software, Amortization	$ 10,200

For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
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Amount of expense for amortization of capitalized computer software costs.

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-Publisher FASB
-Name Accounting Standards Codification
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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
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Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

+ References

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through a franchise arrangement having an indefinite period of benefit.

+ References

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