Detail of Selected Balance Sheet Accounts (Details 1) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite lived intangible assets
Less accumulated amortization:	$ 9,492	$ 7,739
Intangible assets:
Gross	15,476	16,240
Total	5,984	8,501
Customer Relationships [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	11,630	11,630
Less accumulated amortization:	9,492	7,739
Tradenames [Member]
Indefinite lived intangible assets:
Gross	$ 3,846	$ 4,610