Transition report pursuant to Rule 13a-10 or 15d-10

Document and Entity Information

Document and Entity Information - USD ($)
9 Months Ended
Dec. 31, 2018
Apr. 15, 2019
Oct. 31, 2018
Document And Entity Information      
Entity Registrant Name QUANTA INC    
Entity Central Index Key 0001691430    
Document Type 10-KT    
Document Period End Date Dec. 31, 2018    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filer No    
Entity Current Reporting Status Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business Flag true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 9,100,000
Entity Common Stock, Shares Outstanding   39,200,090  
Trading Symbol QNTA    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2018