Consolidated Balance Sheets (USD $)	Dec. 29, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 1,734,000	$ 840,000
Receivables less allowance of $469 and $500	19,761,000	18,176,000
Current portion of long-term note receivable - related party		35,000
Receivable for insured losses	185,000	439,000
Inventories	15,847,000	17,397,000
Prepaid expenses	1,329,000	1,264,000
Cash deposit for self-insured claims		4,340,000
Refundable income taxes	1,376,000
Deferred income taxes	1,291,000	1,624,000
Real estate held for resale - related party	650,000	723,000
Total current assets	42,173,000	44,838,000
Property, plant and equipment
Land and improvements	2,316,000	2,341,000
Buildings and improvements	20,494,000	20,453,000
Machinery and equipment	76,417,000	75,955,000
Mining properties	7,594,000	6,893,000
Less accumulated depreciation and depletion	(87,464,000)	(84,556,000)
Property, plant and equipment, net	19,357,000	21,086,000
Other assets
Goodwill	7,229,000	7,229,000
Amortizable intangible assets, net	176,000	242,000
Prepaid royalties	1,746,000	1,646,000
Long-term note receivable - related party	352,000	317,000
Other	512,000	513,000
Total assets	71,545,000	75,871,000
Current liabilities
Current portion of long-term debt	500,000	500,000
Accounts payable	4,191,000	4,192,000
Income taxes		128,000
Accrued expenses
Compensation	1,721,000	1,752,000
Reserve for self-insured losses	2,595,000	2,676,000
Liability for unpaid claims covered by insurance	185,000	439,000
Profit sharing	757,000	589,000
Reclamation	230,000	230,000
Other	2,536,000	2,256,000
Total current liabilities	12,715,000	12,762,000
Revolving bank loan payable		8,150,000
Long-term debt	3,408,000	3,783,000
Deferred income taxes	803,000	179,000
Accrued reclamation	920,000	920,000
Other long-term liabilities	855,000	771,000
Commitments and contingencies (Note 6)
SHAREHOLDERS' EQUITY
Common shares, $.25 par value; authorized 3,000,000 shares; issued 2,574,264 shares	643,000	643,000
Capital in excess of par value	1,815,000	1,870,000
Retained earnings	66,388,000	62,999,000
Treasury shares, at cost	(16,002,000)	(16,206,000)
Total shareholders' equity	52,844,000	49,306,000
Total liabilities and shareholders' equity	$ 71,545,000	$ 75,871,000