SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 25, 2015 USD ($)	Sep. 30, 2016 USD ($) Segment	Sep. 25, 2015 USD ($)	Dec. 31, 2015 USD ($)
Consolidation Policy [Abstract]
Percentage of voting interest			50.00%
Fiscal Year [Abstract]
Number of shipping days	63 days	63 days	192 days	186 days
Inventories [Abstract]
Percentage of LIFO inventory	60.00%		60.00%		67.00%
FIFO inventory amount	$ 3,700		$ 3,700		$ 3,600
Raw materials	7,562		7,562		11,262
Finished goods	9,037		9,037		12,380
Inventory reserves	(714)		(714)		(738)
LIFO reserve	(3,655)		(3,655)		(3,637)
Total inventories	12,229		12,229		19,267
Accumulated Other Comprehensive Loss [Abstract]
Foreign currency translation adjustments	1,000		1,000		1,000
Pension and other postretirement benefits adjustments	700		$ 700		700
Segment Reporting [Abstract]
Number of segments | Segment			1
Reclassifications [Abstract]
Other assets	30,083		$ 30,083		31,001
Current maturities of long-term debt	4,653		4,653		1,143
Long-term debt	24,442		24,442		21,435
Amortization of debt issuance costs			$ 115	$ 130
Minimum [Member]
Assumptions for expected term, volatility and risk-free rate [Abstract]
Expected term			8 months 12 days	10 months 24 days
Volatility			188.80%	133.10%
Risk-free interest rate			0.50%	0.30%
Maximum [Member]
Assumptions for expected term, volatility and risk-free rate [Abstract]
Expected term			4 years 9 months 18 days	4 years 9 months 18 days
Volatility			274.30%	313.70%
Risk-free interest rate			1.10%	1.40%
Selling, General and Administrative Expenses [Member]
Stock appreciation right income [Abstract]
Stock appreciation right (income) expense	$ (35)	$ 13	$ (11)	$ 76
ASU 2015-03 [Member]
Reclassifications [Abstract]
Other assets					1,747
Current maturities of long-term debt					1,143
Long-term debt					21,435
Amortization of debt issuance costs				130
Accrued expenses		(1,039)		(1,039)
ASU 2015-03 [Member] | As Presented [Member]
Reclassifications [Abstract]
Other assets					3,882
Current maturities of long-term debt					1,800
Long-term debt					22,913
Amortization of debt issuance costs				458
Accrued expenses		(1,367)		(1,367)
ASU 2015-03 [Member] | Reclassifications [Member]
Reclassifications [Abstract]
Other assets					(2,135)
Current maturities of long-term debt					(657)
Long-term debt					$ (1,478)
Amortization of debt issuance costs				(328)
Accrued expenses		$ 328		$ 328