Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Current assets
Cash and cash equivalents	$ 924	$ 1,734
Receivables less allowance of $365 and $469	22,600	19,761
Receivable for insured losses	156	185
Inventories	16,212	15,847
Prepaid expenses	1,357	1,329
Refundable income taxes	812	1,376
Deferred income taxes	1,173	1,291
Real estate held for resale - related party		650
Total current assets	43,234	42,173
Property, plant and equipment
Land and improvements	2,766	2,316
Buildings and improvements	20,793	20,494
Machinery and equipment	77,039	76,417
Mining properties	7,659	7,594
Less accumulated depreciation and depletion	(89,248)	(87,464)
Property, plant and equipment, net	19,009	19,357
Other assets
Goodwill	7,229	7,229
Amortizable intangible assets, net	118	176
Prepaid royalties	1,859	1,746
Long-term note receivable - related party		352
Other	513	512
Total assets	71,962	71,545
Current liabilities
Current portion of long-term debt		500
Accounts payable	5,335	4,191
Accrued expenses
Compensation	2,227	1,721
Reserve for self-insured losses	2,061	2,595
Liability for unpaid claims covered by insurance	156	185
Profit sharing	746	757
Reclamation	271	230
Other	2,239	2,536
Total current liabilities	13,035	12,715
Revolving bank loan payable	1,000
Long-term debt	3,408	3,408
Deferred income taxes	360	803
Accrued reclamation	1,084	920
Other long-term liabilities	1,011	855
Commitments and contingencies (Note 6)
SHAREHOLDERS' EQUITY
Common shares, $.25 par value; authorized 3,000,000 shares; issued 2,574,264 shares	643	643
Capital in excess of par value	1,815	1,815
Retained earnings	65,529	66,388
Treasury shares, at cost	(15,923)	(16,002)
Total shareholders' equity	52,064	52,844
Total liabilities and shareholders' equity	$ 71,962	$ 71,545