Accounting Records and Use of Estimates (Details Textual) (USD $)	6 Months Ended
	Jan. 31, 2013
Deferred Tax Assets, Deferred Income	$ 157,000
Deferred Tax Liabilities, Tax Deferred Income	633,000
Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities	34,000
Deferred Income Tax Expense (Benefit)	$ 27,000