Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Net loss	$ (305,000)	$ (2,080,000)	$ (707,000)	$ (4,957,000)
Other comprehensive loss:
Amortization of actuarial loss	30,000	24,000	81,000	71,000
Adjustments to net periodic benefit cost	30,000	24,000	81,000	71,000
Comprehensive loss	$ (275,000)	$ (2,056,000)	$ (626,000)	$ (4,886,000)