INVENTORIES (Details) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
INVENTORIES
Finished goods	$ 6,958,000	$ 7,034,000
Work in process	985,000	1,167,000
Raw materials and supplies	8,269,000	7,646,000
Inventories	16,212,000	15,847,000
Increase in inventories, if inventories valued on the LIFO basis were valued at current costs	6,328,000	6,290,000
Increase (decrease) in cost of sales due to liquidation of LIFO inventory layers	$ (16,000)	$ (63,000)