v3.26.1
Investments (Additional Information) (Details) - USD ($)
3 Months Ended
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Marketable Debt Securities [Member]
Allowance for credit losses for investments
$ 0
$ 0
$ 0
$ 0
X
- Definition
Investments Allowance For Credit Loss
+ References
No definition available.
+ Details
Name:
prok_InvestmentsAllowanceForCreditLoss
Namespace Prefix:
prok_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- Details
Name:
us-gaap_FinancialInstrumentAxis=prok_MarketableDebtSecuritiesMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type: