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Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Consolidated Statements of Operations [Abstract] |  |  |
Revenues | $ 139,386 | $ 166,819 | $ 154,295
Cost of products sold | 103,993 | 120,163 | 118,986
Gross profit | 35,393 | 46,656 | 35,309
Operating expenses: |  |  |
Research and development (including $313, $409 and $448 of amortization of intangible assets, respectively) | 8,595 | 8,755 | 9,451
Selling, general, and administrative (including $314, $408 and $496 of amortization of intangible assets, respectively) | 24,323 | 26,039 | 29,407
Total operating expenses | 32,918 | 34,794 | 38,858
Operating income (loss) | 2,475 | 11,862 | (3,549)
Other income (expense): |  |  |
Interest income | 5 |  | 21
Interest expense | (559) | (1,138) | (1,452)
Miscellaneous | 171 | 145 | (23)
Income (loss) from continuing operations before income taxes | 2,092 | 10,869 | (5,003)
Income tax provision (benefit)-current | 32 | (557) | 31
Income tax provision-deferred | 496 | 258 | 171
Total income taxes provision (benefit) | 528 | (299) | 202
Net income (loss) from continuing operations | 1,564 | 11,168 | (5,205)
Discontinued operations: |  |  |
Loss from discontinued operations, net of tax | (3,702) | (17,377) | (4,026)
Net income (loss) | (2,138) | (6,209) | (9,231)
Net (income) loss attributable to noncontrolling interest | 58 | 30 | (10)
Net income (loss) attributable to Ultralife | $ (2,080) | $ (6,179) | $ (9,241)
Net income (loss) attributable to Ultralife common shareholders-basic |  |  |
Continuing operations | $ 0.09 | $ 0.65 | $ (0.31)
Discontinued operations | $ (0.21) | $ (1.01) | $ (0.23)
Total | $ (0.12) | $ (0.36) | $ (0.54)
Net income (loss) attributable to Ultralife common shareholders-diluted |  |  |
Continuing operations | $ 0.09 | $ 0.65 | $ (0.31)
Discontinued operations | $ (0.21) | $ (1.01) | $ (0.23)
Total | $ (0.12) | $ (0.36) | $ (0.54)
Weighted average shares outstanding-basic | 17,304 | 17,157 | 16,989
Weighted average shares outstanding-diluted | 17,336 | 17,166 | 16,989

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 171 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 07-4 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration