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Stockholders' Equity	12 Months Ended
Stockholders' Equity	Dec. 31, 2017
Equity [Abstract]
Stockholders' Equity	(12) Stockholders’ Equity Preferred Stock As of December 31, 2017, the Company had authorized 10,000,000 shares of preferred stock, par value $0.001, of which no shares were outstanding. Common Stock Holders of the Company’s common stock are entitled to one vote per share. At December 31, 2017 and 2016, there are 28,330,460 and 27,150,674 shares of common stock issued and outstanding, respectively.