Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.20.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares outstanding (in shares) 33,156,246 27,391,290
Common stock, shares, issued (in shares) 33,156,246 27,391,290
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 3,000,000 3,000,000
Preferred stock, shares outstanding (in shares) 0 0