Detail of Selected Balance Sheet Accounts (Details 1) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Finite lived intangible assets
Less accumulated amortization:	$ 13,377	$ 12,601
Intangible assets:
Gross	24,556	24,616
Total	11,179	12,015
Customer Relationships [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	18,620	18,620
Less accumulated amortization:	13,377	12,601
Tradenames [Member]
Indefinite lived intangible assets:
Gross	$ 5,936	$ 5,996

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-Publisher FASB
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