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General (Details Narrative) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Sep. 30, 2020
May 31, 2018
Mar. 31, 2004
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Ownership percentage       100.00%      
Junior subordinated debenture       $ 2,068 $ 2,068    
Trust Preferred Securities [Member]              
Payment on outstanding trust preferred securities $ 1,100            
Debt interest rate description       The coupon interest rate floats quarterly at the three-month LIBOR rate plus 2.45% (2.68% at December 31, 2020).      
Number of shares exchange         171,500 924,395 301,778
Number of stock cancelled during the period         $ 512 $ 1,881 $ 694
Accrued and unpaid interest payable         $ 2 $ 763 $ 211
Number of shares issued       11,042      
Accrued interest       $ 41,000      
Trust Preferred Securities [Member] | LIBOR [Member]              
Debt interest rate       2.67% 2.45%    
Junior Subordinated Debenture [Member]              
Accrued and unpaid interest payable       $ 0 $ 30    
Debt instrument periodic payment, principal       $ 2,068 $ 2,068    
Third Party [Member]              
Number of trust preferred securities issued   5,000          
Number of common trust securities issued   3,087          
Holders [Member] | Trust Preferred Securities [Member]              
Number of shares exchange         512 1,881 694
Optimum Bank Holdings Capital Trust I [Member]              
Proceeds from issuance of preferred securities     $ 5,155        
Number of trust preferred securities issued     5,000        
Number of common trust securities issued     155        
Junior subordinated debenture     $ 5,155        
Debt instrument maturity date     Oct. 07, 2034