Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
12 Months Ended
Dec. 31, 2021
Mar. 31, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2021    
Current Fiscal Year End Date --12-31    
Entity File Number 001-37960    
Entity Registrant Name Polar Power, Inc.    
Entity Central Index Key 0001622345    
Entity Tax Identification Number 33-0479020    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 249 E. Gardena Blvd.    
Entity Address, City or Town Gardena    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 90248    
City Area Code (310)    
Local Phone Number 830-9153    
Title of 12(b) Security Common Stock, $0.0001 par value    
Trading Symbol POLA    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 65,944,935
Entity Common Stock, Shares Outstanding   12,788,203  
Documents Incorporated by Reference None    
ICFR Auditor Attestation Flag false    
Auditor Firm ID 572    
Auditor Name Weinberg & Company, P.A    
Auditor Location Los Angeles, California