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Cover - USD ($)
 12 Months Ended
Dec. 31, 2022
Feb. 15, 2023
Jul. 02, 2022
Cover [Abstract]      
Entity Registrant Name THE EASTERN COMPANY    
Entity Central Index Key 0000031107    
Document Type 10-K    
Amendment Flag false    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Well Known Seasoned Issuer No    
Entity Small Business true    
Entity Shell Company false    
Entity Emerging Growth Company false    
Entity Current Reporting Status Yes    
Document Period End Date Dec. 31, 2022    
Entity Filer Category Accelerated Filer    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Entity Common Stock Shares Outstanding   6,221,976  
Entity Public Float     $ 101,241,244
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-35383    
Entity Incorporation State Country Code CT    
Entity Tax Identification Number 06-0330020    
Entity Interactive Data Current Yes    
Entity Address Address Line 1 3 Enterprise Drive    
City Area Code 203    
Local Phone Number 729-2255    
Security 12b Title Common Stock, No Par Value    
Icfr Auditor Attestation Flag true    
Auditor Name Fiondella, Milone & LaSaracina LLP    
Auditor Location Naugatuck, Connecticut    
Trading Symbol EML    
Security Exchange Name NASDAQ    
Entity Address Address Line 2 Suite 408    
Entity Address City Or Town Shelton    
Entity Address State Or Province CT    
Entity Address Postal Zip Code 06484    
Auditor Firm Id 2230