Statements of Income and Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	$ 4,408	$ 3,227
Research and Development
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	1,704	1,280
General and Administrative
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	2,190	1,465
Sales and Marketing
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	$ 514	$ 482