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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)
Jun. 30, 2019
$ / shares
shares
Dec. 31, 2018
$ / shares
shares
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 15,000,000 15,000,000
Preferred stock, shares issued (in shares) 47 47
Preferred stock, shares outstanding (in shares) 47 47
Common stock, par value | $ / shares $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 150,000,000 150,000,000
Common stock, shares issued (in shares) 5,993,369 2,298,738
Common stock, shares outstanding (in shares) 5,993,369 2,298,738