Earnings Per Share (Narrative) (Details) (USD $)	3 Months Ended				3 Months Ended		1 Months Ended			3 Months Ended		12 Months Ended		1 Months Ended	3 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Apr. 30, 2014	Oct. 01, 2013	Jul. 31, 2014 2013 Non-Employee Director Restricted Stock Plan	Jul. 31, 2014 Employee Stock Purchase Plan [Member]	Jun. 30, 2014 Restricted Stock [Member]	Jun. 30, 2013 Restricted Stock [Member]	Jun. 30, 2012 Restricted Stock [Member]	Jul. 31, 2014 Restricted Stock [Member]	Jul. 31, 2013 Restricted Stock [Member]	Apr. 30, 2014 Restricted Stock [Member] 2013 Non-Employee Director Restricted Stock Plan	Oct. 31, 2013 Restricted Stock [Member] 2013 Non-Employee Director Restricted Stock Plan	Oct. 31, 2013 Restricted Stock [Member] 2013 Non-Employee Director Restricted Stock Plan Director [Member]	Jul. 31, 2014 Minimum [Member]	Jul. 31, 2014 Maximum [Member]
Earnings Per Share [Line Items]
Common stock were outstanding	97,854	540,192
Options granted	0	25,000
Stock option expense	$ 18,372	$ 29,300				$ 9,666
Stockholders' equity	55,508,770		55,406,343			49,712
Balance of unrecognized compensation expense related to stock options plans	35,235	115,725											7,500
Shares of restricted stock granted									25,000					1,500
Shares of restricted stock vested							8,340	8,330	8,330
Restricted stock expense	1,746	5,236								1,746	5,250	39,700
Issuance of restricted common stock										0	0
Restricted stock, vesting period					6 months
Balance of unrecognized compensation expense related to restricted stock award										0	11,830
Shares of common stock for issuance						500,000
Additional shares of common stock for issuance each fiscal year						25,000
Shares issued						3,790
Number of eligible option to be repurchased				395,190
Authorized tender offer amount	301,500
Authorized tender offer amount, per share															$ 0.18	$ 1.35
Shares repurchased through tender offer	394,200
Shares repurchased through tender offer, value	$ 300,410