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Condensed Consolidated Statements of Operations (unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Oct. 02, 2011	Sep. 26, 2010	Oct. 02, 2011	Sep. 26, 2010
Condensed Consolidated Statements of Operations [Abstract]
Revenues	$ 36,006	$ 50,812	$ 108,017	$ 120,928
Cost of products sold	26,367	35,687	82,043	86,958
Gross profit	9,639	15,125	25,974	33,970
Operating expenses:
Research and development (including $77, $95, $234 and $314, respectively, of amortization of intangible assets)	2,294	2,590	6,915	6,180
Selling, general, and administrative (including $78, $79, $235 and $326, respectively, of amortization of intangible assets)	5,761	6,484	18,732	18,965
Total operating expenses	8,055	9,074	25,647	25,145
Operating income (loss)	1,584	6,051	327	8,825
Other income (expense):
Interest income	2		4
Interest expense	(126)	(242)	(444)	(952)
Miscellaneous	49	436	339	353
Income (loss) from continuing operations before income taxes	1,509	6,245	226	8,226
Income tax provision-current	66	151	133	217
Income tax provision-deferred	66	130	199	224
Total income taxes	132	281	332	441
Net income (loss) from continuing operations	1,377	5,964	(106)	7,785
Discontinued operations:
Loss from discontinued operations, net of tax		(1,466)	(3,796)	(2,974)
Net income (loss)	1,377	4,498	(3,902)	4,811
Net (income) loss attributable to noncontrolling interest	11	28	39	22
Net income (loss) attributable to Ultralife	$ 1,388	$ 4,526	$ (3,863)	$ 4,833
Net income (loss) attributable to Ultralife common shareholders - basic
Continuing operations	$ 0.08	$ 0.35	$ 0.00	$ 0.45
Discontinued operations	$ 0	$ (0.09)	$ (0.22)	$ (0.17)
Total	$ 0.08	$ 0.26	$ (0.22)	$ 0.28
Net income (loss) attributable to Ultralife common shareholders - diluted
Continuing operations	$ 0.08	$ 0.35	$ 0.00	$ 0.45
Discontinued operations	$ 0	$ (0.09)	$ (0.22)	$ (0.17)
Total	$ 0.08	$ 0.26	$ (0.22)	$ 0.28
Weighted average shares outstanding - basic	17,313	17,225	17,295	17,131
Weighted average shares outstanding - diluted	17,341	17,449	17,295	17,136

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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