CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 30, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 1,063	$ 1,012
Accounts receivable, net of allowance of $2,227 and $2,312	99,768	104,513
Inventories, net	44,718	44,281
Prepaid expense	10,244	9,248
Total current assets	155,793	159,054
PLANT AND EQUIPMENT
Land	1,900	1,900
Buildings and improvements	65,370	65,259
Machinery and equipment	182,090	182,830
Office equipment	157,779	156,596
Construction in progress	5,465	2,886
Total	412,604	409,471
Less accumulated depreciation	353,931	350,548
Total plant and equipment, net	58,673	58,923
OTHER ASSETS
Goodwill	7,456	7,456
Intangible assets, net	5,660	5,933
Deferred tax asset	22,765	22,765
Other	5,424	5,773
Total assets	255,771	259,904
CURRENT LIABILITIES
Current portion of long-term debt	45,957	2,361
Accounts payable	29,108	29,237
Other current liabilities	42,025	43,234
Total current liabilities	117,090	74,832
LONG-TERM LIABILITIES
Long-term debt	4,980	49,159
Pension benefit liability	245,349	252,665
Deferred compensation	3,345	3,498
Environmental liabilities	3,697	3,986
Other long-term liabilities	2,608	2,624
Total long-term liabilities	259,979	311,932
COMMITMENTS AND CONTINGENCIES - See Note 11
SHAREHOLDERS' DEFICIT
Capital in excess of par value	68,000	67,880
Accumulated other comprehensive losses	(224,474)	(231,618)
Retained earnings	53,811	55,861
Treasury stock at cost: 2,021 shares	(50,236)	(50,236)
Total shareholders' deficit	(121,298)	(126,860)
Total liabilities and shareholders' deficit	255,771	259,904
Common Stock
SHAREHOLDERS' DEFICIT
Common stock	26,876	26,528
Common Class A
SHAREHOLDERS' DEFICIT
Common stock	$ 4,725	$ 4,725