Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Feb. 19, 2019	Jun. 29, 2018
Document And Entity Information
Entity Registrant Name	BK Technologies, Inc.
Entity Central Index Key	0000002186
Document Type	10-K
Document Period End Date	Dec. 31, 2018
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 Public Float			$ 27,446,444
Entity Common Stock, Shares Outstanding		12,754,294
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2018