Annual report pursuant to Section 13 and 15(d)

INTANGIBLE ASSETS - Amortization expense (Details)

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INTANGIBLE ASSETS - Amortization expense (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
INTANGIBLE ASSETS      
Amortization expense $ 2,132,000 $ 2,108,000 $ 794,000
Estimated aggregate amount of amortization expense for intangible assets      
2022 2,100,000    
2023 2,100,000    
2024 2,100,000    
2025 2,100,000    
2026 2,100,000    
Accumulated amortization $ 5,100,000 $ 3,000,000.0