v2.4.0.6
Document and Entity Information
6 Months Ended
Jun. 30, 2013
Jul. 30, 2013
Document Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2013  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q2  
Trading Symbol PSIX  
Entity Registrant Name POWER SOLUTIONS INTERNATIONAL, INC.  
Entity Central Index Key 0001137091  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   10,377,454