Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Aug. 06, 2019
Document And Entity Information    
Entity Registrant Name Pacific Ethanol, Inc.  
Entity Central Index Key 0000778164  
Document Type 10-Q  
Document Period End Date Jun. 30, 2019  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Incorporation, State or Country Code DE  
Entity File Number 000-21467  
Entity Interactive Data Current Yes  
Entity Reporting Status Current Yes  
Entity Emerging Growth Company false  
Entity Ex Transition Period false  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   49,771,412
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2019