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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events From July 1, 2018 through July 30, 2018, the Company sold 111,020 shares of its Common Stock under the Sales Agreement. The Company received gross proceeds of $1.7 million and paid commissions of $51 thousand, resulting in net proceeds of $1.65 million.