Components of Assets and Liabilities of discontinued operations (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations And Disposal Groups [Abstract]
Accounts receivable, net		$ 95
Inventories		161
Other assets		375
Assets of discontinued operations	$ 0	631
Accounts payable		16
Accrued expenses and other current liabilities		74
Other liabilities		234
Liabilities of discontinued operations	$ 0	$ 324