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STOCKHOLDERS' EQUITY - Shares Issued through the At-the-Market Offering Program (Details) - At-the-Market Equity Offering Program - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
STOCKHOLDERS' EQUITY    
Number of shares sold 0 17,000
Proceeds from sale of common stock, net of commissions   $ 604,000
Payment of commissions on sale of shares   12,000
Payment of offering costs on sale of shares   $ 41,000