EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Details 1) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Heico Common Stock [Member]
Defined Contribution Plan Disclosure [Line Items]
Shares available for issuance, Opening Balance	125	170	0
Common Stock, Capital Shares Reserved for Future Issuance			187
Issuance of common stock to 401(k) Plan	(57)	(45)	(17)
Shares available for issuance, Ending Balance	68	125	170
Common Class A [Member]
Defined Contribution Plan Disclosure [Line Items]
Shares available for issuance, Opening Balance	125	170	0
Common Stock, Capital Shares Reserved for Future Issuance			187
Issuance of common stock to 401(k) Plan	(57)	(45)	(17)
Shares available for issuance, Ending Balance	68	125	170