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OTHER ASSETS: - Additional information (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
OTHER ASSETS:      
2022 $ 192,000    
2023 189,000    
2024 189,000    
2025 189,000    
2026 188,000    
Amortization expense $ 160,422 $ 106,842 $ 85,804