XML 13 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8
Earnings Per Share - Additional Information (Detail)
3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Mar. 31, 2013
Earnings Per Share Disclosure [Line Items]        
Number of potentially dilutive stock option shares excluded from the calculation of earnings per share 55,000 222,000 115,000 222,000