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Discontinued Operations (Vascular) (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
4 Months Ended 12 Months Ended
Aug. 31, 2010
Vascular [Member]
Apr. 30, 2010
Vascular [Member]
Jun. 30, 2012
VascuView TAP Products [Member]
Payment
Jun. 30, 2011
VascuView TAP Products [Member]
Apr. 30, 2010
Sales Price Component, Cash at Closing [Member]
Vascular [Member]
Apr. 30, 2010
Sales Price Component, Cash Upon Transfer [Member]
Vascular [Member]
Noncash or Part Noncash Divestitures [Line Items]            
Total sales price divestment   $ 5,750     $ 5,000 $ 750
Number of earn-out payments     1      
Earn out payment percentage of net sales       25.00%    
Disposal Group Including Discontinued Operation, Transition Period 4 months          
Gross profit related to the supply agreement $ 565