Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 26, 2021	Jun. 30, 2020
Cover [Abstract]
Entity Registrant Name	BK Technologies Corp
Entity Central Index Key	0000002186
Document Type	10-K
Document Period End Date	Dec. 31, 2020
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	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity Incorporation, State or Country Code	NV
Entity File Number	001-32644
Entity Public Float			$ 17,141,876
Entity Common Stock, Shares Outstanding		12,511,966
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020