Statements of Income and Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	$ 5,005	$ 4,408
Research and Development
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	1,981	1,704
General and Administrative
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	2,519	2,190
Sales and Marketing
Operating expenses include stock-based compensation as follows:
Total stock-based compensation	$ 505	$ 514