XML 12 R1.htm IDEA: XBRL DOCUMENT v3.19.2
Document and Entity Information - shares
6 Months Ended
Jun. 29, 2019
Aug. 06, 2019
Document and Entity Information    
Document Type 10-Q  
Document Period End Date Jun. 29, 2019  
Entity Registrant Name CONTINENTAL MATERIALS CORPORATION  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   1,712,165
Current Fiscal Year End Date --12-28  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0000024104  
Amendment Flag false