Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Condensed Consolidated Balance Sheets
Allowance for credit losses	$ 51	$ 58
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized	90,000,000	90,000,000
Common stock, shares, issued	29,798,040	29,572,953
Common stock, shares, outstanding	29,798,040	29,572,953