Three months ended September 30,

Nine months ended September 30,

2021

2020

2021

2020

Numerator:

Net loss

$

(2,169

)

$

(1,260

)

$

(5,410

)

$

(5,044

)

Denominator:

Basic weighted average shares outstanding

19,449,283

17,000,215

19,002,758

16,768,088

Dilutive common stock equivalents using treasury stock method

—

Diluted weighted average shares outstanding

19,449,283

17,000,215

19,002,758

16,768,088

Basic loss per common share

$

(0.11

)

$

(0.07

)

$

(0.28

)

$

(0.30

)

Diluted loss per common share

$

(0.11

)

$

(0.07

)

$

(0.28

)

$

(0.30

)

Weighted average options, warrants and convertible portion of senior convertible notes outstanding

4,240,247

511,332

3,826,807

528,107

Anti-dilutive options, warrants and convertible portion of senior convertible notes not included in the computation

4,240,247

511,332

3,826,807

528,107