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Shareholders' Equity (Options Vested or are Expected to Vest as of December 31, 2021) (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2022
USD ($)
$ / shares
shares
Stockholders' Equity Note [Abstract]  
Vested, number of shares | shares 289,016
Expected to vest, number of shares | shares 99,081
Total, number of shares | shares 388,097
Vested, weighted average exercise price | $ / shares $ 2.46
Expected to vest, weighted average exercise price | $ / shares 2.01
Total, weighted average exercise price | $ / shares $ 2.35
Vested, weighted average remaining contractual term 3 years 5 months 8 days
Expected to vest, weighted average remaining contractual term 5 years 5 months 8 days
Total, weighted average remaining contractual term 3 years 11 months 12 days
Vested, aggregate intrinsic value | $ $ 0
Expected to vest, aggregate intrinsic value | $ 0
Total, aggregate intrinsic value | $ $ 0