Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Aug. 31, 2020
Stockholders Equity Note [Line Items]
Common stock, no par value	$ 0		$ 0		$ 0
Options outstanding	4,337	4,051	4,337		4,259
Exercise of options (in shares)	19	26
Number of stock options forfeited (in shares)		382
Number of Options Granted	305	200
Proceeds from issuance of stock options			$ 61	$ 24
Equity Incentive Plan
Stockholders Equity Note [Line Items]
Exercise of options (in shares)	26		45
Number of Options Granted	305		505
Proceeds from issuance of stock options	$ 46		$ 61
Shares issuable under Stock Option Plan, as percent of shares outstanding			25.00%
Vesting period			3 years
Expiration term			10 years
Stock Option In Canadian Dollars [Member]
Stockholders Equity Note [Line Items]
Options outstanding						0
Stock Option In Us Dollars [Member] | Equity Incentive Plan
Stockholders Equity Note [Line Items]
Options outstanding	4,337		4,337
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number	3,050		3,050
U.S.dollars [Member]
Stockholders Equity Note [Line Items]
Class Or Warrant Or Right Outstanding Weighted Average Remaining Contractual Terms			6 years 7 months 6 days
Maximum | Equity Incentive Plan
Stockholders Equity Note [Line Items]
Shares issuable under Stock Option Plan	6,517		6,517