SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended
Mar. 27, 2015 Segment	Mar. 28, 2014	Dec. 31, 2014
Fiscal Year [Abstract]
Number of shipping days	60 days	61 days
Consolidation Policy [Abstract]
Percentage of voting interest (in hundredths)	50.00%
Inventories [Abstract]
Raw materials	$ 8,078,000		$ 6,457,000
Finished goods	15,444,000us-gaap_InventoryFinishedGoods		14,714,000us-gaap_InventoryFinishedGoods
Inventory reserves	(681,000)us-gaap_InventorySuppliesNetOfReserves		(618,000)us-gaap_InventorySuppliesNetOfReserves
LIFO reserve	(4,408,000)us-gaap_InventoryLIFOReserve		(4,672,000)us-gaap_InventoryLIFOReserve
Total inventories	18,433,000us-gaap_InventoryNet		15,881,000us-gaap_InventoryNet
Percentage of LIFO inventory (in hundredths)	81.00%us-gaap_PercentageOfLIFOInventory		78.00%us-gaap_PercentageOfLIFOInventory
FIFO inventory amount	4,400,000us-gaap_FIFOInventoryAmount		4,700,000us-gaap_FIFOInventoryAmount
Stock appreciation right income [Abstract]
Granted (in shares)	0	0
Accumulated Comprehensive Loss [Abstract]
Foreign currency translation adjustments	800,000		700,000
Pension and other postretirement benefits adjustments	800,000		800,000
Segment Reporting [Abstract]
Number of segments	1us-gaap_NumberOfOperatingSegments
Minimum [Member]
Assumptions for expected term, volatility and risk-free rate [Abstract]
Expected term (years)	1 year 4 months 24 days	2 years 4 months 24 days
Volatility (in hundredths)	230.10%	320.20%
Risk-free interest rate (in hundredths)	0.40%	0.70%
Maximum [Member]
Assumptions for expected term, volatility and risk-free rate [Abstract]
Expected term (years)	4 years 7 months 6 days	4 years 7 months 6 days
Volatility (in hundredths)	332.50%	374.30%
Risk-free interest rate (in hundredths)	1.30%	1.60%
Selling, General and Administrative Expenses [Member]
Stock appreciation right income [Abstract]
Stock appreciation right expense	$ 20,000	44,000

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Refers to minimum percentage of voting interest in subsidiaries the entity has while consolidating the financial statements.

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The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount of difference between inventory at lower of LIFO cost or market and inventory at lower of other inventory accounting method cost or market, for example, but not limited to, FIFO or average cost.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. May also include items used in the storage, presentation or transportation of physical goods.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

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Amount of capitalized and expensed compensation cost from equity-based compensation arrangements.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Gross number of share options (or share units) granted during the period.

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