Components of Assets and Liabilities (Details) - USD ($)	Jul. 03, 2015	Dec. 31, 2014
Discontinued Operations And Disposal Groups [Abstract]
Accounts receivable, net		$ 95,000
Inventories		161,000
Prepaid and other current assets		8,000
Other assets		367,000
Assets of discontinued operations	$ 0	631,000
Accounts payable		16,000
Accrued expenses and other current liabilities		74,000
Other liabilities		234,000
Liabilities of discontinued operations	$ 0	$ 324,000