CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND RETAINED EARNINGS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND RETAINED EARNINGS
Net sales	$ 28,865	$ 29,166	$ 87,935	$ 83,309
Costs and expenses:
Cost of sales (exclusive of depreciation, depletion and amortization)	23,765	23,636	71,374	67,466
Depreciation, depletion and amortization	669	825	2,328	2,938
Selling and administrative	4,764	4,801	14,613	14,987
Williams EcoLogix project expenses	16	73	726	268
Gain on disposition of property and equipment	12	4	10	21
Total costs and expenses	29,202	29,331	89,031	85,638
Operating loss	(337)	(165)	(1,096)	(2,329)
Interest expense, net	(95)	(135)	(274)	(400)
Amortization of deferred financing fees				(60)
Other income, net	1	3	19	17
Loss from continuing operations before income taxes	(431)	(297)	(1,351)	(2,772)
Benefit for income taxes	(189)	(106)	(493)	(1,026)
Net loss from continuing operations			(858)	(1,746)
Loss from discontinued operation net of income tax benefit of $0 and $5				(9)
Net loss	(242)	(191)	(858)	(1,755)
Retained earnings, beginning of period	65,772	61,435	66,388	62,999
Retained earnings, end of period	$ 65,530	$ 61,244	$ 65,530	$ 61,244
Net loss per basic and diluted share:
Continuing operations (in dollars per share)			$ (0.52)	$ (1.07)
Net loss per basic and diluted share (in dollars per share)	$ (0.15)	$ (0.11)	$ (0.52)	$ (1.07)
Average shares outstanding (in shares)	1,639	1,634	1,642	1,634