EARNINGS PER SHARE (EPS) (Details) (USD $)	3 Months Ended	9 Months Ended
Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012	Sep. 30, 2011
EARNINGS PER SHARE (EPS)
Net income (loss)	$ 787,000	$ 2,165,000	$ (17,600,000)	$ 2,609,000
Weighted-average common shares outstanding-basic	7,315,000	7,267,000	7,303,000	7,258,000
Effect of dilutive stock options (in shares)		201,000		220,000
Weighted-average common shares outstanding-diluted	7,315,000	7,468,000	7,303,000	7,478,000
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.11	$ 0.30	$ (2.41)	$ 0.36
Diluted (in dollars per share)	$ 0.11	$ 0.29	$ (2.41)	$ 0.35
Options
Anti-dilutive securities excluded from the computation of stock option
Number of options excluded from calculation of dilutive potential common shares (in shares)	990,000	297,000	990,000	297,000

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