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1. Notes of Activities and Summary of Significant Accounting Policies (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Notes Of Activities And Summary Of Significant Accounting Policies Details
Aemetis Series B preferred	3,097,725	3,383,174	3,103,206	3,564,857
Aemetis Series B warrants	28,690	443,853	190,046	443,853
Aemetis Common stock options and warrants	9,026,873	7,187,734	8,987,972	7,190,870
Convertible interest & fees on note – related party	572,294	25,411,787	493,096	24,214,666
Convertible promissory note	173,404		172,311
Total weighted average number of potentially dilutive shares excluded from the diluted net loss per share calculation	12,898,986	36,426,548	12,946,631	35,414,246