Document and Entity Information (USD $)
12 Months Ended
Sep. 30, 2012
Nov. 20, 2012
Mar. 31, 2012
Document And Entity Information      
Entity Registrant Name Parametric Sound Corp    
Entity Central Index Key 0001493761    
Document Type 10-K    
Document Period End Date Sep. 30, 2012    
Amendment Flag false    
Current Fiscal Year End Date --09-30    
Is Entity a Well-known Seasoned Issuer? No    
Is Entity a Voluntary Filer? No    
Is Entity's Reporting Status Current? Yes    
Entity Filer Category Smaller Reporting Company    
Entity Public Float     $ 18,815,760
Entity Common Stock, Shares Outstanding   6,409,497  
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2012