v2.4.0.8
Document and Entity Information
9 Months Ended
Sep. 30, 2015
Oct. 30, 2015
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2015  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q3  
Trading Symbol MHH  
Entity Registrant Name Mastech Holdings, Inc.  
Entity Central Index Key 0001437226  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   4,353,189