DOCUMENT AND ENTITY INFORMATION	9 Months Ended
	Mar. 31, 2012	May 04, 2012
Entity Registrant Name	BOLT TECHNOLOGY CORP
Entity Central Index Key	0000354655
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Trading Symbol	bolt
Entity Common Stock, Shares Outstanding		8,575,958
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2012
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2012