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Prepaid Expenses and Other Current Assets
 6 Months Ended
Jun. 30, 2023
Prepaid Expense and Other Assets, Current [Abstract]  
Prepaid Expenses and Other Current Assets Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consist of the following:
(In thousands)June 30,
2023		December 31,
2022
Clinical trial expenses$1,630 $1,630 
Insurance premiums94 123 
Professional services389 121 
Other162 95 
Total prepaid expenses and other current assets$2,275 $1,969