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Revenue Recognition, Summary (Details)
6 Months Ended
Jun. 30, 2022
Treatment Equipment [Abstract]  
Lease term 36 months
Minimum [Member]  
Treatment Equipment [Abstract]  
Notice period to cancel contract agreement 30 days
Maximum [Member]  
Treatment Equipment [Abstract]  
Notice period to cancel contract agreement 60 days
South Korea [Member]  
Treatment Equipment [Abstract]  
Lease term 48 months