Share-based compensation (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2020

Dec. 31, 2019

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of restricted stock units stock option activity

		Per Unit
	Units	Fair Value
Outstanding, December 31, 2019	36,520	$	12.60
Granted	1,262,308		26.00
Restrictions lapsed	—		—
Forfeited	(7,772)		26.00
Outstanding, September 30, 2020	1,291,056	$	25.62

		Per Unit
	Units	Fair Value
Outstanding, January 1, 2018	26,840	$	5.49
Granted	25,520		5.87
Restrictions lapsed	(26,840)		5.49
Forfeited	—		—
Outstanding, December 31, 2018	25,520		5.87
Granted	36,520		12.60
Restrictions lapsed	(25,520)		5.87
Forfeited	—		—
Outstanding, December 31, 2019	36,520		12.60

Service-based options

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of stock-option activity

				Weighted‑
		Weighted‑		Average	Aggregate
		Average		Remaining	Intrinsic
		Exercise		Contractual	Value
	Options	Price		Term (Years)	(in thousands)
Outstanding, December 31, 2019	4,073,286	$	5.65	8.1	$	37,520
Granted	—		—
Exercised	(33,792)		5.49			498
Forfeitures	—		—
Outstanding, September 30, 2020	4,039,494	$	5.65	7.3	$	129,098
Options exercisable at September 30, 2020	2,400,693	$	5.50	7.2	$	77,080
Vested or expected to vest at September 30, 2020	4,039,494	$	5.65	7.3	$	129,098

				Weighted‑
		Weighted‑		Average	Aggregate
		Average		Remaining	Intrinsic
		Exercise		Contractual	Value
	Options	Price		Term (Years)	(in thousands)
Outstanding, January 1, 2018	4,122,070	$	5.49	—	$	—
Granted	535,957		5.62			—
Exercised	(322,851)		5.49			123
Forfeitures	(89,467)		5.49			—
Outstanding, December 31, 2018	4,245,709		5.51	8.9		—
Granted	212,668		8.21			—
Exercised	(168,391)		5.49			256
Forfeitures	(216,700)		5.49			—
Outstanding, December 31, 2019	4,073,286	$	5.65	8.1	$	37,520
Options exercisable at December 31, 2019	1,640,037	$	5.50	8.0	$	15,350
Vested or expected to vest at December 31, 2019	4,073,286	$	5.65	8.1	$	37,520

Schedule of stock based compensation

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(in thousands)
Cost of revenue:
Subscription	$	314	$	38	$	390	$	156
Services		62		—		62		—
Sales and marketing		675		112		897		348
Research and development		523		99		821		284
General and administrative		754		349		1,733		1,028
	$	2,328	$	598	$	3,903	$	1,816

	Years Ended
	December 31,
($000's)	2019		2018
Cost of revenues:
Subscription	$	194	$	225
Services		—		—
Sales and marketing		460		529
Research and development		394		239
General and administrative		1,413		1,322
	$	2,461	$	2,315

Performance-based options

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of stock-option activity

				Weighted‑
		Weighted‑		Average	Aggregate
		Average		Remaining	Intrinsic
		Exercise		Contractual	Value
	Options	Price		Term (Years)	(in thousands)
Outstanding, December 31, 2019	3,687,664	$	6.75	8.8	$	29,908
Granted	—		—
Exercised	—		—			—
Forfeitures	—		—
Outstanding, September 30, 2020	3,687,664	$	6.75	8.0	$	113,786
Options exercisable at September 30, 2020	—	$	—	—	$	—
Vested or expected to vest at September 30, 2020	—	$	—	—	$	—

						Weighted-
		Weighted-		Average	Aggregate
		Average		Remaining	Intrinsic
		Exercise		Contractual	Value
	Options	Price		Term (Years)	(in thousands)
Outstanding, January 1, 2018	2,105,772	$	5.49		$	—
Granted	183,884		5.54			—
Exercised	—		—			—
Forfeitures	(89,467)		5.49			—
Outstanding, December 31, 2018	2,200,189		5.49	8.9		—
Granted	1,653,209		8.29			—
Exercised	—		—			—
Forfeitures	(165,734)		5.49			—
Outstanding, December 31, 2019	3,687,664	$	6.75	8.8	$	29,908
Options exercisable at December 31, 2019	—	$	—	—	$	—
Vested or expected to vest at December 31, 2019	—	$	—	—	$	—