Numerator:

Net loss

$

(2,454

)

$

(1,715

)

$

(5,078

)

$

(3,357

)

Denominator:

Weighted-average common shares outstanding, basic and diluted

6,998

3,503

6,993

3,349

Net loss per common share, basic and diluted

$

(0.35

)

$

(0.49

)

$

(0.73

)

$

(1.00

)

Anti-dilutive potential common stock equivalents excluded from the calculation of net loss per share:

Stock options to purchase common stock

627

421

627

421

Unvested restricted stock units

128

70

128

70