Year ended December 31,

2020

2019

2018

Numerator

Net loss

$

(16,790

)

$

(99,557

)

$

(26,563

)

Preferred stock dividends

(552

)

(552

)

(552

)

Net loss applicable to common shares

$

(17,342

)

$

(100,109

)

$

(27,115

)

Denominator

Basic weighted average common shares

527,329

490,449

433,419

Dilutive stock options, restricted stock units, and warrants

—

Diluted weighted average common shares

527,329

490,449

433,419

Basic loss per common share

$

(0.03

)

$

(0.20

)

$

(0.06

)

Diluted loss per common share

$

(0.03

)

$

(0.20

)

$

(0.06

)