Annual report pursuant to Section 13 and 15(d)

Earnings per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Detail)

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Earnings per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Calculation of basic (loss) earnings per share of common stock:                      
Net (loss) income (attributable) available to common stockholders $ (5,305) $ (631) $ (616) $ 1,792 $ (331) $ (170) $ (317) $ 1,791 $ (4,760) $ 973 $ (4,939)
Denominator for basic weighted average shares of common stock (in shares)                 30,695,902 28,675,934 26,358,237
Basic loss per share of common stock (in dollars per share)                 $ (0.16) $ 0.03 $ (0.19)
Calculation of diluted (loss) earnings per share of common stock:                      
Net (loss) income (attributable) available to common stockholders $ (5,305) $ (631) $ (616) $ 1,792 $ (331) $ (170) $ (317) $ 1,791 $ (4,760) $ 973 $ (4,939)
Net loss attributable to common stockholders plus assumed conversions                 $ (4,760) $ 973 $ (4,939)
Denominator for basic weighted average shares of common stock (in shares)                 30,695,902 28,675,934 26,358,237
Effect of convertible senior common stock (in shares)                 0 0 0
Denominator for diluted weighted average shares of common stock (in shares)                 30,695,902 28,675,934 26,358,237
Diluted loss per share of common stock (in dollars per share)                 $ (0.16) $ 0.03 $ (0.19)