Defined Benefit Plan (Details) (USD $)	0 Months Ended
	Jul. 27, 2011 Employee	Feb. 28, 2013	Nov. 30, 2012
Pension Plans (Textual)
Total outstanding amount due to PBGC including accrued interest		$ 1,844,201	$ 1,821,464
Number of former employees covered under defined benefit plan	40