XML 54 R44.htm IDEA: XBRL DOCUMENT v3.22.1
Securities (Details)
 12 Months Ended
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Securities (Details) [Line Items]    
Securities, Description Securities available for sale consist of U.S. government agency securities and mortgage-backed securities guaranteed by U.S. government agencies. Securities held to maturity consist of Property Assessed Clean Energy (“PACE”) and Public Improvement District/Tax Increment Reinvestment Zone (“PID/TIRZ”) investments. These investment contracts or bonds located in Texas, California and Florida, originate under a contractual obligation between the property owners, the local county or city administration, and a third-party administrator and sponsor. PACE assessments are created to fund the purchase and installation of energy saving improvements to the property such as solar panels. PID/TIRZ assessments are used to pay for the development costs of a residential subdivision. Generally, as a property assessment, the total assessment is repaid in installments over a period of 5 to 32 years by the then current property owner(s). Each installment is collected by the County or City Tax Collector where the property is located. The assessments are an obligation of the property. Securities, restricted consist of Federal Reserve Bank of Dallas (“FRB”) and Federal Home Loan Bank of Dallas (“FHLB”) stock, which are carried at cost.   
Federal Reserve Bank Stock $ 1,200,000 $ 1,200,000
Federal Home Loan Bank Stock 1,300,000 1,300,000
Marketable Securities, Current $ 100,000 100,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions 12  
Asset Pledged as Collateral [Member]    
Securities (Details) [Line Items]    
Financial Instruments, Owned, at Fair Value $ 163,000 $ 554,000