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1. BASIS OF PRESENTATION (Tables)
3 Months Ended
Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Earnings per share
    Three months ended March 31,  
    2020     2019  
Numerator                
                 
Net income   $ 787,082     $ 426,476  
Accrued preferred stock dividends     (256,452 )     (256,452 )
                 
Net income applicable to common shares   $ 530,630     $ 170,024  
                 
Denominator                
                 
Weighted-average common shares     4,964,529       4,964,529  
                 
Income per common share after preferred dividends   $ 0.11     $ 0.03