REDEEMABLE NONCONTROLLING INTERESTS (Details Textuals) (USD $)	12 Months Ended																1 Months Ended				12 Months Ended			6 Months Ended	12 Months Ended						12 Months Ended			1 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010	Aug. 01, 2012 CSI Aerospace [Member]	Oct. 31, 2012 Subsidiary Five [Member] ETG Subsidiary One [Member]	Oct. 31, 2012 Action Research Corporation [Member]	Oct. 05, 2012 Action Research Corporation [Member]	Oct. 31, 2012 Subsidiary Two [Member] ETG Subsidiary One [Member]	Oct. 31, 2012 Subsidiary Two [Member] Aerospace Holdings Corp. [Member]	Oct. 31, 2012 Subsidiary Two [Member] Electronic Technologies Group [Member]	Oct. 31, 2012 Subsidiary Two [Member] Flight Support Group [Member]	Oct. 31, 2012 Subsidiary One [Member] ETG Subsidiary One [Member]	Oct. 31, 2012 Subsidiary One [Member] Aerospace Holdings Corp. [Member]	Oct. 31, 2012 Subsidiary One [Member] Electronic Technologies Group [Member]	Oct. 31, 2012 Subsidiary One [Member] Flight Support Group [Member]	Oct. 31, 2012 Subsidiary Four [Member] Aerospace Holdings Corp. [Member]	Dec. 19, 2012 Subsidiary Four [Member] Flight Support Group [Member]	Feb. 28, 2011 Subsidiary Four [Member] Flight Support Group [Member]	Dec. 31, 2008 Subsidiary Four [Member] Flight Support Group [Member]	Apr. 30, 2008 Subsidiary Four [Member] Flight Support Group [Member]	Oct. 31, 2012 Subsidiary Four [Member] Flight Support Group [Member]	Oct. 31, 2008 Subsidiary Four [Member] Flight Support Group [Member]	Oct. 31, 2006 Subsidiary Four [Member] Flight Support Group [Member]	Apr. 30, 2011 Subsidiary Three [Member] ETG Subsidiary One [Member]	Oct. 31, 2012 Subsidiary Three [Member] ETG Subsidiary One [Member]	Oct. 31, 2009 Subsidiary Three [Member] ETG Subsidiary One [Member]	Oct. 31, 2007 Subsidiary Three [Member] ETG Subsidiary One [Member]	Oct. 31, 2005 Subsidiary Three [Member] ETG Subsidiary One [Member]	Oct. 31, 2012 Subsidiary Three [Member] Aerospace Holdings Corp. [Member]	Oct. 31, 2012 Subsidiary Three [Member] Electronic Technologies Group [Member]	Oct. 31, 2010 Subsidiary Three [Member] Flight Support Group [Member]	Oct. 31, 2012 Subsidiary Three [Member] Flight Support Group [Member]	Oct. 31, 2008 Subsidiary Three [Member] Flight Support Group [Member]	Feb. 28, 2011 Noncontrolling Interest [Member] Subsidiary Four [Member] Flight Support Group [Member]
Business Acquisition [Line Items]
Management's estimate of the aggregate redemption amount of all put rights	$ 67,166,000	$ 65,430,000			$ 400,000
Estimated Redemption Amount of equity interest redeemable at fair value	42,000,000
Acquisition of interest in the subsidiary				84.00%		80.10%	80.10%	82.50%			80.10%	80.10%			80.10%								51.00%					85.00%					80.10%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				16.00%	22.00%		19.90%
Estimated Redemption Amount of equity interest redeemable based on a multiple of future earnings	25,000,000
Percentage of company total ownership interest									80.10%	82.50%			80.10%	80.10%		86.70%					86.70%				95.90%				82.30%	95.90%		82.30%
Exercise of option by Noncontrolling interest holders																	13.30%	7.00%	14.00%	7.00%	20.00%	28.00%			10.50%	10.50%	3.00%				2.20%			1.00%
Less: redemption amount of redeemable noncontrolling interests in excess of fair value (see Note 12)	13,000	19,000	(102,000)
Increase in ownership interest in the subsidiary																								10.90%
Payments For Repurchase Of Redeemable Noncontrolling Interest	$ 7,616,000	$ 7,241,000	$ 795,000
Deferred acquisition interest																									2.60%