Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Accumulated Amortization	$ (1,189,000)	$ (983,000)
Net Amount	1,651,000	486,000
Healthspan Research LLC Acquisition
Gross Carrying Amount	$ 1,346,000
Weighted Average Total Amortization Period	10 years
License agreements and other
Gross Carrying Amount	$ 1,494,000	$ 1,469,000
Weighted Average Total Amortization Period	9 years