Lines of Credit - Narrative (Details) - Committed Revolving Credit Line - USD ($)	Jun. 30, 2025	Dec. 22, 2021
Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Long-term debt	$ 0
JP Morgan Chase Bank, N.A. \| Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	30,000,000
JP Morgan Chase Bank, N.A. \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 50,000,000
JP Morgan Chase Bank, N.A. \| Line of Credit \| Letter of Credit
Line of Credit Facility [Line Items]
Utilized amount of the maximum allowable credit line	$ 16,800,000

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

Energy Recovery, Inc. 10-Q