Consolidated Balance Sheets (Parenthetical) In Thousands, except Share data	Jun. 30, 2011 USD ($)	Jun. 30, 2011 EUR (€)	Jun. 30, 2010 USD ($)	Jun. 30, 2010 EUR (€)
Current assets:
Allowances on accounts receivable	$ 243		$ 53
Shareholders' equity:
Preferred shares, par value		€ 0.01		€ 0.01
Preferred shares, shares authorized	120,000,000	120,000,000	120,000,000	120,000,000
Preferred shares, shares issued	0	0	0	0
Preferred shares, shares outstanding	0	0	0	0
Ordinary shares, par value		€ 0.01		€ 0.01
Ordinary shares, shares authorized	120,000,000	120,000,000	120,000,000	120,000,000
Ordinary shares, shares issued	49,950,289	49,950,289	49,891,244	49,891,244
Ordinary shares, shares outstanding	43,144,718	43,144,718	43,855,164	43,855,164
Treasury shares	6,805,571	6,805,571	6,036,080	6,036,080