Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	May 07, 2021
Cover [Abstract]
Entity Registrant Name	BK Technologies Corp
Entity Central Index Key	0000002186
Document Type	10-Q
Document Period End Date	Mar. 31, 2021
Amendment Flag	false
Current Fiscal Year End Date	--12-31
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 Common Stock, Shares Outstanding		12,536,471
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2021