REDEEMABLE NONCONTROLLING INTERESTS (Details Textuals) (USD $)	3 Months Ended	12 Months Ended							48 Months Ended		60 Months Ended	78 Months Ended			1 Months Ended			36 Months Ended	48 Months Ended		1 Months Ended		3 Months Ended		1 Months Ended
	Jan. 31, 2009	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009	Apr. 30, 2011	Oct. 31, 2005 Electronic Technologies Group [Member]	Oct. 31, 2004 Electronic Technologies Group [Member] Subsidiary One [Member]	Oct. 31, 2009 Electronic Technologies Group [Member] Subsidiary Three [Member]	Apr. 30, 2015 Electronic Technologies Group [Member] Subsidiary Two [Member]	Oct. 31, 2012 Electronic Technologies Group [Member] Subsidiary Two [Member]	Oct. 31, 2011 Electronic Technologies Group [Member] Subsidiary Two [Member]	Apr. 30, 2011 Electronic Technologies Group [Member] Subsidiary Two [Member]	Oct. 31, 2005 Electronic Technologies Group [Member] Subsidiary Two [Member]	Oct. 31, 2011 Aerospace Holdings Corp. [Member] Subsidiary One [Member]	Feb. 28, 2011 Flight Support Group [Member] Subsidiary One [Member]	Dec. 31, 2008 Flight Support Group [Member] Subsidiary One [Member]	Apr. 30, 2008 Flight Support Group [Member] Subsidiary One [Member]	Oct. 31, 2014 Flight Support Group [Member] Subsidiary One [Member]	Oct. 31, 2011 Flight Support Group [Member] Subsidiary One [Member]	Oct. 31, 2006 Flight Support Group [Member] Subsidiary One [Member]	May 31, 2010 Flight Support Group [Member] Subsidiary Three [Member]	Nov. 30, 2008 Flight Support Group [Member] Subsidiary Three [Member]	Jan. 31, 2009 Flight Support Group [Member] Subsidiary Four [Member]	Oct. 31, 2008 Flight Support Group [Member] Subsidiary Four [Member]	Feb. 28, 2011 Flight Support Group [Member] Subsidiary Two [Member]	Nov. 30, 2006 Flight Support Group [Member] Subsidiary Two [Member]	Dec. 31, 2010 Flight Support Group [Member] Subsidiary Five [Member]
Business Acquisition [Line Items]
Management's estimate of the aggregate redemption amount of all put rights		$ 65,430,000	$ 55,048,000
Estimated Redemption Amount of equity interest redeemable at fair value		34,000,000
Acquisition of interest in the subsidiary		80.10%	80.10%	82.50%	95.90%	85.00%	80.10%	82.50%					85.00%	80.00%	80.00%					51.00%	82.30%	80.10%		100.00%		80.10%	80.10%
Estimated Redemption Amount of equity interest redeemable based on a multiple of future earnings		31,000,000
Percentage of additional equity interest acquired in one of our subsidiaries	10.00%									10.50%	3.00%	10.90%			29.00%	14.00%	7.00%		28.00%		2.20%		10.00%		1.00%
Less: redemption amount of redeemable noncontrolling interests in excess of fair value (see Note 12)		19,000	102,000	0
Adjustments To Redemption Amount Of Redeemable Noncontrolling Interests Determined In Excess Of Fair Value		13,000
Excess Of Redemption Amount Of Redeemable Noncontrolling Interests Paid		70,000
Payments For Repurchase Of Redeemable Noncontrolling Interest		$ (7,241,000)	$ (795,000)	$ (11,268,000)
Percentage To Be Acquired As Additional Equity Interest In Subsidiary									1.50%									20.00%