Stock Incentive Plan (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Number of Stock Options Outstanding
Balance, Beginning | shares	1,581,582
Options exercised | shares	(85,226)
Balance, Ending | shares	1,496,356	1,581,582
Exercisable, Ending | shares	1,447,502
Weighted Average Exercise Price
Balance, Beginning | $ / shares	$ 3.23
Options exercised | $ / shares	2.77
Balance, Ending | $ / shares	3.25	$ 3.23
Exercisable, Ending | $ / shares	$ 3.14
Weighted Average Remaining Contractual Term, Options Outstanding (in years)	5 years 1 month 24 days	5 years 10 months 9 days
Weighted Average Remaining Contractual Term, Options Exercisable (in years)	5 years 29 days
Aggregate Intrinsic Value, Options Outstanding | $	$ 75,023	$ 70,827
Aggregate Intrinsic Value, Options Exercisable | $	$ 72,741