XML 17 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Cover - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2025
Dec. 15, 2025
Mar. 31, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag false    
Amendment Flag false    
Document Period End Date Sep. 30, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Information [Line Items]      
Entity Registrant Name Magyar Bancorp, Inc.    
Entity Central Index Key 0001337068    
Entity File Number 000-51726    
Entity Tax Identification Number 20-4154978    
Entity Incorporation, State or Country Code DE    
Current Fiscal Year End Date --09-30    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Public Float     $ 90.0
Entity Contact Personnel [Line Items]      
Entity Address, Address Line One 400 Somerset Street    
Entity Address, City or Town New Brunswick    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 08901    
Entity Phone Fax Numbers [Line Items]      
City Area Code (732)    
Local Phone Number 342-7600    
Entity Listings [Line Items]      
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol MGYR    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   6,477,991