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Calculations for Basic and Diluted Net Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Numerator: |  |
Net loss | $ (2,047) | $ (815)
Accretion of Series B convertible preferred stock dividends | (270) | (258)
Numerator for basic EPS - net loss available to common stockholders | $ (2,317) | $ (1,073)
Denominator: |  |
Weighted average common shares outstanding - basic | 17,521 | 16,837
Net loss per common share - basic | $ (0.13) | $ (0.06)

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