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Note 20 - Selected Quarterly Financial Information (Unaudited) (Detail) - Quarterly financial information (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Dec. 29, 2012	Dec. 31, 2011
Revenues	$ 37,019	$ 34,839	$ 35,753	$ 38,206	$ 35,032	$ 33,559	$ 36,514	$ 38,706	$ 145,817	$ 143,811
Gross profit	10,099	9,675	9,656	10,285	10,128	9,098	10,460	11,050	39,715	40,736
Operating income	1,330	1,107	1,015	1,776	2,187	742	2,023	2,057	5,228	7,009
Income from continuing operations	$ 1,029	$ 634	$ 505	$ 1,059	$ 1,137	$ 724	$ 1,242	$ 1,175	$ 3,227	$ 4,278
Diluted income from continuing operations (in Dollars per share)	$ 0.09	$ 0.05	$ 0.04	$ 0.08	$ 0.09	$ 0.06	$ 0.09	$ 0.09	$ 0.26	$ 0.33

X

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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