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Earnings (Loss) per Share- Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2022
Sep. 30, 2021
Numerator:                
Net income (loss) $ (80) $ (70) $ 337 $ (1,257) $ (1,918) $ (394) $ 187 $ (3,569)
Denominator for earnings (loss) per basic common share:                
Weighted average common shares outstanding (in shares) 12,192,000     13,121,000     12,344,000 13,225,000
Denominator for earnings (loss) per diluted common share:                
Weighted average common shares outstanding (in shares) 12,192,000     13,121,000     12,344,000 13,225,000
Dilutive effect of stock options and restricted stock/units (in shares) 0     0     90,000 0
Diluted weighted average shares (in shares) 12,192,000     13,121,000     12,434,000 13,225,000
Earnings (loss) per common share:                
Basic (in dollars per share) $ (0.01)     $ (0.10)     $ 0.02 $ (0.27)
Diluted (in dollars per share) $ (0.01)     $ (0.10)     $ 0.02 $ (0.27)
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) 233,912     276,319     143,891 276,319
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) 326,584     145,334     326,584 145,334