XML 83 R72.htm IDEA: XBRL DOCUMENT v3.3.1.900
Note 15 - Restricted Stock Activity (Details)
9 Months Ended
Feb. 29, 2016
$ / shares
shares
Restricted Stock [Member]  
Nonvested restricted stock units outstanding (in shares) | shares 2,400
Nonvested restricted stock units outstanding (in dollars per share) | $ / shares $ 84.55
Granted (in shares) | shares 34,566
Granted (in dollars per share) | $ / shares $ 104.24
Nonvested restricted stock units outstanding (in shares) | shares 36,166
Nonvested restricted stock units outstanding (in dollars per share) | $ / shares $ 103.25
Stock Appreciation Rights (SARs) [Member]  
Nonvested restricted stock units outstanding (in shares) | shares 167,000
Nonvested restricted stock units outstanding (in dollars per share) | $ / shares $ 1.98
Granted (in shares) | shares 3,000
Granted (in dollars per share) | $ / shares $ 1.98
Nonvested restricted stock units outstanding (in shares) | shares 0
Nonvested restricted stock units outstanding (in dollars per share) | $ / shares $ 0
Forfeited (in shares) | shares (2,600)
Forfeited (in dollars per share) | $ / shares $ 1.98
Cancelled/Expired (in shares) | shares (167,400)
Cancelled/Expired (in dollars per share) | $ / shares $ 1.98