{"cik":1621832,"taxonomy":"us-gaap","tag":"LongTermDebt","label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","entityName":"Aqua Metals, Inc.","units":{"USD":[{"end":"2015-12-31","val":10017370,"accn":"0001615774-16-004637","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-28","frame":"CY2015Q4I"},{"end":"2016-12-31","val":10257000,"accn":"0001615774-17-000866","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-02"},{"end":"2016-12-31","val":9921000,"accn":"0001615774-18-001909","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-15","frame":"CY2016Q4I"},{"end":"2018-12-31","val":9545000,"accn":"0001621832-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-28","frame":"CY2018Q4I"},{"end":"2019-12-31","val":9306000,"accn":"0001621832-20-000036","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-11","frame":"CY2019Q4I"},{"end":"2020-12-31","val":332000,"accn":"0001437749-21-004116","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25","frame":"CY2020Q4I"}]}}