Share-based incentive plans (Details) (USD $) | 9 Months Ended |
Mar. 31, 2014 |
SHARE-BASED INCENTIVE PLANS | ' |
Exercise price of stock options outstanding, low end of range (in dollars per share) | $1.24 |
Exercise price of stock option outstanding, high end of range (in dollars per share) | $35.23 |
1997 Plan | Stock Option Awards | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Number of shares authorized | 4,800,000 |
Expiration period (in years) | '10 years |
1997 Plan | Stock Option Awards | Minimum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '1 year |
1997 Plan | Stock Option Awards | Maximum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '5 years |
1997 Plan | Restricted Stock Awards | ' |
Additional disclosures | ' |
Awards outstanding | 0 |
2004 Plan | Stock Option Awards | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Number of shares authorized | 2,000,000 |
Expiration period (in years) | '10 years |
Shares available for grant | 6,637 |
2004 Plan | Stock Option Awards | Minimum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '1 year |
2004 Plan | Stock Option Awards | Maximum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '5 years |
2004 Plan | Performance Shares | ' |
Additional disclosures | ' |
Awards outstanding | 10,000 |
2008 Plan | Stock Option Awards | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Number of shares authorized | 5,400,000 |
Expiration period (in years) | '10 years |
2008 Plan | Stock Option Awards | Minimum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '1 year |
2008 Plan | Stock Option Awards | Maximum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '4 years |
2008 Plan | Performance Shares | ' |
Additional disclosures | ' |
Awards outstanding | 135,000 |
2004 and 2008 Plans | Restricted Stock Awards | ' |
Additional disclosures | ' |
Awards outstanding | 345,443 |
Weighted average grant date fair value of awards granted (in dollars per share) | $12.48 |
2004 and 2008 Plans | Restricted Stock Awards | Minimum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '1 year |
2004 and 2008 Plans | Restricted Stock Awards | Maximum | ' |
SHARE-BASED INCENTIVE PLANS | ' |
Vesting period (in years) | '4 years |