CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND RETAINED EARNINGS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND RETAINED EARNINGS
Net sales	$ 32,857	$ 29,747	$ 59,070	$ 54,143
Costs and expenses:
Cost of sales (exclusive of depreciation, depletion and amortization)	25,989	24,256	47,609	43,830
Depreciation, depletion and amortization	844	1,045	1,659	2,113
Selling and administrative	4,986	4,991	9,849	10,186
Williams EcoLogix project expenses	662	99	710	195
(Loss) gain on disposition of property and equipment	(2)	15	(2)	17
Total costs and expenses	32,483	30,376	59,829	56,307
Operating income (loss)	374	(629)	(759)	(2,164)
Interest expense, net	(92)	(131)	(179)	(265)
Amortization of deferred financing fees		(9)		(60)
Other income, net	5	4	18	14
Income (loss) from continuing operations before income taxes	287	(765)	(920)	(2,475)
Provision (benefit) for income taxes	100	(263)	(304)	(920)
Net income (loss) from continuing operations	187	(502)	(616)	(1,555)
Loss from discontinued operation net of income tax benefit of $0 and $5		(9)		(9)
Net income (loss)	187	(511)	(616)	(1,564)
Retained earnings, beginning of period	65,585	61,946	66,388	62,999
Retained earnings, end of period	$ 65,772	$ 61,435	$ 65,772	$ 61,435
Net income (loss) per basic and diluted share:
Continuing operations (in dollars per share)	$ 0.11	$ (0.31)	$ (0.37)	$ (0.95)
Discontinued operation (in dollars per share)		$ (0.01)		$ (0.01)
Basic and diluted loss per share (in dollars per share)	$ 0.11	$ (0.32)	$ (0.37)	$ (0.96)
Average shares outstanding (in shares)	1,646	1,634	1,643	1,634