Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

Document And Entity Information - shares
6 Months Ended
Jun. 30, 2021
Jul. 26, 2021
Document Information [Line Items]    
Entity Central Index Key 0001621832  
Entity Registrant Name Aqua Metals, Inc.  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2021  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2021  
Document Transition Report false  
Entity File Number 001-37515  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 47-1169572  
Entity Address, Address Line One 2500 Peru Dr.  
Entity Address, City or Town McCarran  
Entity Address, State or Province NV  
Entity Address, Postal Zip Code 89437  
City Area Code 775  
Local Phone Number 446-4418  
Title of 12(b) Security Common Stock  
Trading Symbol AQMS  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   69,457,518