Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2012
Mar. 15, 2013
Jun. 30, 2012
Document and Entity Information      
Entity Registrant Name PLC SYSTEMS INC    
Entity Central Index Key 0000879682    
Document Type 10-K    
Document Period End Date Dec. 31, 2012    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Smaller Reporting Company    
Entity Public Float     $ 5,881,127
Entity Common Stock, Shares Outstanding   54,722,410  
Document Fiscal Year Focus 2012    
Document Fiscal Period Focus FY