Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value Measurements Recurring - USD ($) $ in Thousands	Oct. 02, 2016	Jan. 03, 2016
Level 1
Schedule of Assets Measured at Fair Value on a Recurring Basis
Cash and cash equivalents (as held in the Trust as defined below)	$ 139	$ 1,205
Assets held in trust	2,437	2,415
Cash surrender value - life insurance
Level 1 | Corporate Bonds (as Held in the Trust)
Schedule of Assets Measured at Fair Value on a Recurring Basis
Assets held in trust	1,490	510
Level 1 | U.S. Government Obligations (as Held in the Trust)
Schedule of Assets Measured at Fair Value on a Recurring Basis
Assets held in trust	808	700
Level 2
Schedule of Assets Measured at Fair Value on a Recurring Basis
Cash and cash equivalents (as held in the Trust as defined below)
Assets held in trust	1,966	1,948
Cash surrender value - life insurance	1,966	1,948
Level 2 | Corporate Bonds (as Held in the Trust)
Schedule of Assets Measured at Fair Value on a Recurring Basis
Assets held in trust
Level 2 | U.S. Government Obligations (as Held in the Trust)
Schedule of Assets Measured at Fair Value on a Recurring Basis
Assets held in trust