| Warrant reserve [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for a component of equity resulting from issuing share purchase warrants, other than those resulting from share-based payment arrangements. [Refer: Reserve of share-based payments [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Riserva warrant [member] | it | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Questo membro indica una componente del patrimonio netto derivante dall'emissione di warrant staccabili per l'acquisto di azioni, diversi da quelli derivanti da accordi di pagamento basato su azioni. [Rif: Riserva dei pagamenti basati su azioni [member]] | it | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |