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Commitments and Contingencies Litigation (Details) - Celtique Claim - GBP (£)
£ in Thousands
12 Months Ended
Aug. 11, 2016
Jun. 30, 2016
Loss Contingencies [Line Items]    
Settlement costs £ 500 £ 500
Litigation settlement amount, cash 179  
Litigation settlement amount, stock, value £ 321