Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	May 21, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2021
Entity File Number	001-40126
Entity Registrant Name	DHB CAPITAL CORP.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-4335869
Entity Address, Address Line One	5 Brewster Street
Entity Address, Address Line Two	#2105
Entity Address, City or Town	Glen Cove
Entity Address State Or Province	NY
Entity Address, Postal Zip Code	11542
City Area Code	646
Local Phone Number	450-5664
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Entity Central Index Key	0001838176
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false
Units, each consisting of one share of Class A Common Stock and one-third of one Redeemable Warrant
Document Information [Line Items]
Title of 12(b) Security	Units, each consisting of one share of Class A Common Stock and one-third of one Redeemable Warrant
Trading Symbol	DHBCU
Security Exchange Name	NASDAQ
Class A Common Stock
Document Information [Line Items]
Title of 12(b) Security	Class A Common Stock, par value $0.0001 per share
Trading Symbol	DHBC
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		28,750,000
Warrants, each exercisable for one share Class A Common Stock for $11.50 per share
Document Information [Line Items]
Title of 12(b) Security	Warrants, each exercisable for one share Class A Common Stock for $11.50 per share
Trading Symbol	DHBCW
Security Exchange Name	NASDAQ
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		7,187,500