v3.26.3
Leases - Amounts recognized in the consolidated balance sheet (Details) - GBP (£)
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Leases      
Right-of-use assets £ 2,903,000 £ 7,145,000  
Additions to right-of-use assets 792,000 81,000  
Lease liabilities:      
Current 465,000 572,000  
Non-current 2,805,000 7,899,000  
Total lease liabilities 3,270,000 8,471,000 £ 8,641,000
Property      
Leases      
Right-of-use assets 2,881,000 6,879,000  
Plant and machinery      
Leases      
Right-of-use assets £ 22,000 £ 266,000