Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator:
Net income attributable to common stockholders	$ 1,168	$ 335
Denominator:
Weighted average number of common shares outstanding, basic and diluted (in shares)	18,418	17,837
Earnings Per Share, Basic and Diluted [Abstract]
Net income attributable to common stockholders per share (in dollars per share)	$ 0.06	$ 0.02