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Stock Option And Benefit Plans (Additional Information Regarding Options Outstanding) (Detail)
12 Months Ended
Jun. 30, 2018
$ / shares
shares
$4.40 to $7.90  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices $ 4.40
Range of Exercise Prices $ 7.90
Number Outstanding | shares 247,500
SARs Outstanding Weighted Avg. Remaining Contractual Life (yrs.) 4 years 1 month 6 days
Weighted Avg. Exercise Price $ 7.26
SARs Exercisable Number Exercisable | shares 0
Weighted Avg. Exercise Price $ 0.00
$7.91 to $9.91  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices 7.91
Range of Exercise Prices $ 9.91
Number Outstanding | shares 423,333
SARs Outstanding Weighted Avg. Remaining Contractual Life (yrs.) 2 years 3 months 18 days
Weighted Avg. Exercise Price $ 8.07
SARs Exercisable Number Exercisable | shares 195,833
Weighted Avg. Exercise Price $ 7.94
$9.92 to $11.34  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices 9.92
Range of Exercise Prices $ 11.34
Number Outstanding | shares 404,166
SARs Outstanding Weighted Avg. Remaining Contractual Life (yrs.) 1 year 1 month 6 days
Weighted Avg. Exercise Price $ 10.77
SARs Exercisable Number Exercisable | shares 190,833
Weighted Avg. Exercise Price $ 11.34
$4.40 to $11.34  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices 4.40
Range of Exercise Prices $ 11.34
Number Outstanding | shares 1,074,999
SARs Outstanding Weighted Avg. Remaining Contractual Life (yrs.) 2 years 3 months 18 days
Weighted Avg. Exercise Price $ 8.90
SARs Exercisable Number Exercisable | shares 386,666
Weighted Avg. Exercise Price $ 9.62