Share-Based Payments - Summary of Offering Periods and Costs (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 4,048	$ 3,213	$ 3,325
2019 ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
First offering period, start date	Aug. 15, 2021
First offering period, end date	Feb. 14, 2022
Second offering period, start date	Feb. 15, 2022
Second offering period, end date	Aug. 14, 2022
Third offering period start date	Aug. 15, 2022
Third offering period, end date	Feb. 14, 2023
Fourth offering period, start date	Feb. 15, 2023
Fourth offering period, end date	Aug. 14, 2023
Fifth offering period, start date	Aug. 15, 2023
Fifth offering period, end date	Feb. 14, 2024
Sixth offering period, start date	Feb. 15, 2024
Sixth offering period, end date	Aug. 14, 2024
2019 ESPP [Member] | First Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, share	14,274
Cost Per Share	$ 27.37
Stock-based compensation	$ 69
2019 ESPP [Member] | Second Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, share	14,555
Cost Per Share	$ 27.61
Stock-based compensation	$ 71
2019 ESPP [Member] | Third Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, share	17,058
Cost Per Share	$ 26.18
Stock-based compensation	$ 81
2019 ESPP [Member] | Fourth Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, share	14,548
Cost Per Share	$ 22.34
Stock-based compensation	$ 57
2019 ESPP [Member] | Fifth Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, share	16,884
Cost Per Share	$ 21.79
Stock-based compensation	$ 65
2019 ESPP [Member] | Sixth Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, share	12,581
Cost Per Share	$ 28.52
Stock-based compensation	$ 63