Stock-Based Compensation - Information About Stock Options Outstanding and Exercisable (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Number of Shares Outstanding [Roll Forward]
Option Balances, beginning of period (in shares)	153,877
Options Granted (in shares)	25,000
Options Exercised (in shares)	(96,748)
Options Forfeited (in shares)	(3,750)
Option Balances, end of period (in shares)	78,379	153,877
Options Exercisable end of period (in shares)	45,317
Options, Weighted Average Exercise Price [Roll Forward]
Option Balances, beginning of period (in dollars per share)	$ 4.75
Options Granted (in dollars per share)	12.72
Options Exercised (in dollars per share)	4.68
Options Forfeited (in dollars per share)	3.90
Option Balances, end of period (in dollars per share)	7.43	$ 4.75
Options Exercisable, end of period (in dollars per share)	4.74
Weighted Average Grant Date Fair Value [Roll Forward]
Option Balances, beginning of period	1.18
Options Granted	4.02
Options Exercised	1.26
Options Forfeited	0.89
Option Balances, end of period	2.00	$ 1.18
Options Exercisable, end of period	$ 1.02
Options, Additional Disclosures [Abstract]
Aggregate intrinsic value, outstanding	$ 593	$ 208
Aggregate intrinsic value, exercisable	$ 465
Weighted average years remaining, outstanding	2 years 8 months 12 days	2 years
Weighted average years remaining, exercisable, end of period	1 year 4 months 24 days