Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Stockholders' Equity

v2.4.0.8
Consolidated Statements of Stockholders' Equity (USD $)
Total
Common Stock 0.001 Par Value
Additional Paid-in Capital
Accumulated Deficit
Noncontrolling Interest
Balance, beginning balance at Dec. 31, 2012 $ 4,783,035 $ 54,448 $ 16,319,985 $ (11,759,723) $ 168,325
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Forfeiture of restricted stock grant (350) (150)     (200)
Stock based compensation expense (38,179)   (22,057)   (16,122)
Loss available to stockholders (1,950,873)        
Net loss attributable to Tecogen Inc. (2,163,846)       (212,973)
Balance, ending balance at Jun. 30, 2013 $ 2,580,660 $ 54,298 $ 16,297,928 $ (13,710,596) $ (60,970)