Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Preferred Stock, Par Value Per Share $ 0.001 $ 0.001
Preferred Stock, Shares Authorized 50,000,000 50,000,000
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 0 0
Common Stock, Par Value Per Share $ 0.001 $ 0.001
Common Stock, Shares Authorized 500,000,000 500,000,000
Common Stock, Shares, Issued 12,540,686 12,476,414
Common Stock, Shares, Outstanding 12,526,240 12,427,220
Common stock reserved for issuance 2,264 17,120