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Note 2 - Acquisition (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] |
Cash |  | $ | 942 |
Accounts receivable |  |  | 3,621 |
Inventories |  |  | 4,685 |
Other current assets |  |  | 431 |
Property, plant and equipment |  |  | 9,177 |
Goodwill |  |  | 6,534 |
Customer relationships |  |  | 2,522 |
Trade name |  |  | 1,127 |
Accounts payable |  |  | (1,060 | )
Other current liabilities |  |  | (778 | )
Deferred tax liability, net |  |  | (1,011 | )
Net assets acquired |  | $ | 26,190 |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  | Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Revenue |  | $ | 107,712 |  |  | $ | 115,590 |
Operating income |  |  | 5,701 |  |  |  | 8,008 |
Net Income attributable to Ultralife Corporation |  |  | 5,232 |  |  |  | 5,526 |
Net income per share attributable to Ultralife Corporation: |  |  |  |  |  |  |  |
Basic |  | $ | 0.33 |  |  | $ | 0.35 |
Diluted |  | $ | 0.33 |  |  | $ | 0.34 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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