SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013	Dec. 31, 2013
Fiscal Year [Abstract]
Number of shipping days	63 days	63 days	187 days	189 days
Inventories [Abstract]
Raw materials	$ 7,913,000		$ 7,913,000		$ 5,803,000
Finished goods	15,156,000		15,156,000		9,101,000
Inventory reserves	(649,000)		(649,000)		(534,000)
LIFO reserve	(4,616,000)		(4,616,000)		(4,366,000)
Total inventories	17,804,000		17,804,000		10,004,000
Percentage of LIFO inventory (in hundredths)	81.00%		81.00%		80.00%
FIFO inventory amount	4,600,000		4,600,000		4,400,000
Stock appreciation right income [Abstract]
Stock appreciation right income (expense)			50,000	15,000
Accumulated Comprehensive Loss [Abstract]
Foreign currency translation adjustments	700,000		700,000		600,000
Pension and other postretirement benefits adjustments	300,000		300,000		300,000
Minimum [Member]
Assumptions for expected term, volatility and risk-free rate [Abstract]
Expected term (years)			1 year 10 months 24 days	0 years 4 months 24 days
Volatility (in hundredths)			244.20%	217.50%
Risk-free interest rate (in hundredths)			0.60%	0.10%
Maximum [Member]
Assumptions for expected term, volatility and risk-free rate [Abstract]
Expected term (years)			4 years 9 months 18 days	4 years 9 months 18 days
Volatility (in hundredths)			353.40%	360.30%
Risk-free interest rate (in hundredths)			1.70%	1.30%
Selling, General and Administrative Expenses [Member]
Stock appreciation right income [Abstract]
Stock appreciation right income (expense)	$ 15,000	$ (4,000)	$ 50,000	$ 15,000