Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.10.0.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, authorized (in shares) 50,000,000 50,000,000
Common stock, issued (in shares) 38,932,437 27,554,076
Common stock, outstanding (in shares) 38,932,437 27,554,076