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(Loss) Earnings per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2021
Jun. 30, 2020
Numerator:            
Net (loss) income $ (1,918) $ (394) $ 165 $ 4,082 $ (2,313) $ 4,247
Denominator for (loss) earnings per basic common share:            
Weighted average common shares outstanding (in shares) 13,305,000   13,237,000   13,284,000 13,197,000
Denominator for (loss) earnings per diluted common share:            
Dilutive effect of stock options and restricted stock/units (in shares) 0   243,000   0 251,000
Diluted weighted average shares (in shares) 13,305,000   13,480,000   13,284,000 13,448,000
(Loss) earnings per common share:            
Basic (in dollars per share) $ (0.14)   $ 0.01   $ (0.17) $ 0.32
Diluted (in dollars per share) $ (0.14)   $ 0.01   $ (0.17) $ 0.32
Restricted Stock            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Number of shares not included in the computation of dilutive income (loss) per share (in shares) 276,319       276,319  
Stock Options            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Number of shares not included in the computation of dilutive income (loss) per share (in shares) 145,334   168,334   145,334 175,587