Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended		9 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Accumulated Other Comprehensive Income: [Abstract]
Beginning balance, net of tax effect	$ 158,751	$ 92,427	$ 129,412	$ 183,633
Other comprehensive income, net of tax effect:
Unrealized gains on available-for-sale securities	31,369	55,468	83,708	44,449
Tax effect	(14,000)	(25,000)	(37,000)	(19,000)
Unrealized gains on available-for-sale securities, net of tax effect	17,369	30,468	46,708	25,449
Amounts reclassified from accumulated other comprehensive income, net of tax effect:
Unrealized (losses) on available-for-sale securities reclassified				(155,187)
Tax effect				69,000
Amounts reclassified, net of tax effect				(86,187)
Ending balance, net of tax effect	$ 176,120	$ 122,895	$ 176,120	$ 122,895