Basic and Diluted Loss per Share (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator [Abstract]
Net income (loss) attributed to common stockholders	$ 3,231	$ (2,149)	$ 1,026	$ (8,407)
Denominator [Abstract]
Weighted-average shares outstanding for basic earnings per share (in shares)	20,647,426	20,407,958	20,638,116	20,375,446
Effect of dilutive securities [Abstract]
Employee stock options (in shares)	54,577	0	0	0
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share (in shares)	20,702,003	20,407,958	20,638,116	20,375,446
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	0	74,732	20,005	56,373