Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.7.0.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2017
Apr. 27, 2017
Document And Entity Information    
Entity Registrant Name MECHANICAL TECHNOLOGY INC  
Entity Central Index Key 0000064463  
Current Fiscal Year End Date --12-31  
Amendment Flag false  
Document Type 10-Q  
Document Period End Date Mar. 31, 2017  
Entity a Well-known Seasoned Issuer No  
Entity a Voluntary Filer No  
Entity's Reporting Status Current Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   9,140,768
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2017