| Ordinary shares [member] | Redeemable Preference shares [member] | Non-Redeemable Preference shares [member] | Total shares [member] | ||
| Issued Capital [abstract] | |||||
| Shares issued and fully paid [abstract] | |||||
| Number of shares issued and fully paid [abstract] | |||||
| Number of shares issued and fully paid | |||||
| Other changes in number of shares issued and fully paid | |||||
| Amount of shares issued and fully paid [abstract] | |||||
| Balance at the beginning of period | |||||
| Amount of shares issued for cash under ESOS | |||||
| Amount of shares issued for cash under private placement | |||||
| Amount of shares arising from conversion of ICULS by surrender option | |||||
| Amount of shares arising from conversion of ICULS by mandatory conversion | |||||
| Total amount of shares issued during financial year | |||||
| Other changes in amount of shares issued and fully paid | |||||
| Balance at the end of period | |||||
| Shares issued but not fully paid [abstract] | |||||
| Number of shares issued but not fully paid [abstract] | |||||
| Number of shares issued but not fully paid | |||||
| Other changes in number of shares issued but not fully paid | |||||
| Amount of shares issued and but not fully paid [abstract] | |||||
| Amount of shares issued but not fully paid | |||||
| Other changes in amount of shares issued but not fully paid | |||||
| Shares outstanding [abstract] | |||||
| Number of shares outstanding [abstract] | |||||
| Number of shares outstanding at beginning of period | |||||
| Number of outstanding shares issued during financial year | |||||
| Other changes in number of shares outstanding | |||||
| Number of shares outstanding at end of period | |||||
| Amount of shares outstanding [abstract] | |||||
| Amount of shares outstanding at beginning of period | |||||
| Amount of outstanding shares issued during financial year | |||||
| Other changes in amount of shares outstanding | |||||
| Amount of shares outstanding at end of period | |||||