XML 73 R62.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock-Based Compensation - Stock Options (Details)
 3 Months Ended
Sep. 30, 2018
$ / shares
shares
Shares  
Total outstanding options at beginning of year (in shares) | shares 144,000
Options granted (in shares) | shares 50,000
Options exercised (in shares) | shares (26,000)
Outstanding options at end of period (in shares) | shares 168,000
Price or range per share  
Total outstanding options at beginning of year (in dollars per share) $ 27.24
Options granted (in dollars per share) 42.13
Options exercised (in dollars per share) (25.85)
Total outstanding options at end of year (in dollars per share) $ 31.89
Exercisable at end of period (in shares) | shares 5,000
Exercisable at end of period (in dollars per share) $ 30.87
Minimum  
Price or range per share  
Total outstanding options at end of year (in dollars per share) 25.85
Maximum  
Price or range per share  
Total outstanding options at end of year (in dollars per share) $ 42.13