Annual report pursuant to Section 13 and 15(d)

Statements of Stockholders' Equity (Parenthetical)

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Statements of Stockholders' Equity (Parenthetical) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]    
Stock issuance cost $ 260,179 $ 509,215