Description of Business and Significant Accounting Policies (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Description Of Business And Significant Accounting Policies [Line Items]
Net income available to common stockholders	$ 2,456,000	$ 1,381,000	$ 7,837,000	$ 4,786,000
Weighted average common shares (in shares)	8,676,381	8,625,390	8,661,090	8,602,916
Weighted average common share equivalents (in shares)	15,753	2,049	13,859	2,125
Total weighted average common shares and common share equivalents (in shares)	8,692,134	8,627,439	8,674,949	8,605,041
Basic earnings per share (in dollars per share)	$ 0.28	$ 0.16	$ 0.90	$ 0.56
Diluted earnings per share (in dollars per share)	$ 0.28	$ 0.16	$ 0.90	$ 0.56