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DISTRIBUTION AGREEMENT WITH TEIJIN PHARMA LIMITED - Additional Information (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Jun. 01, 2019
JPY (¥)
Oct. 31, 2017
Jun. 30, 2019
USD ($)
Dec. 31, 2023
Dec. 31, 2017
USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Term of distribution agreement   7 years 6 months      
Reimbursement of rate per treatment session | ¥ ¥ 12,000        
Distribution agreement, renewal period   2 years     2 years
Distribution term agreement       The term of the distribution agreement will be automatically extended for two years unless either party gives the other party at least two years’ prior written of notice of non-renewal, except that the Company cannot decline to renew the agreement if Teijin has purchased 100% of its sales forecasts over the term of the agreement.  
Teijin | Distribution Agreement          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Agreement expiry date         Mar. 31, 2027
Extended term of agreement         2 years
Related party purchased percentage of sales forecasts over agreement term.         100.00%
Upfront Payment          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Payment received         $ 750
Milestone Payment          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Payment received     $ 700   $ 2,000