v2.4.0.8
Document and Entity Information
3 Months Ended
Mar. 30, 2014
May 01, 2014
Document And Entity Information    
Entity Registrant Name Ultralife Corporation  
Entity Central Index Key 0000875657  
Document Type 10-Q  
Document Period End Date Mar. 30, 2014  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Is Entity a Well-known Seasoned Issuer? No  
Is Entity a Voluntary Filer? No  
Is Entity's Reporting Status Current? Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   17,526,229
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2014