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15. Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Carrying amount and estimated fair value of the Company's financial instruments
(Dollars in thousands)                    
        Fair Value Measurements at December 31, 2018
    Carrying Amount   Level 1   Level 2   Level 3   Total
Assets:                    
Cash and cash equivalents   $ 43,370       43,370       —         —         43,370  
Investment securities available for sale   $ 194,578       —         194,328       250       194,578  
Other investments   $ 4,361       —         —         4,361       4,361  
Mortgage loans held for sale   $ 680       —         —         680       680  
Loans, net   $ 797,578       —         —         748,917       748,917  
Cash surrender value of life insurance   $ 15,936       —         15,936       —         15,936  
                                         
Liabilities:                                        
Deposits   $ 877,213       —         —         857,999       857,999  
Securities sold under agreements                                        
to repurchase   $ 58,095       —         58,095       —         58,095  
Junior subordinated debentures   $ 20,619       —         20,619       —         20,619  

 

(Dollars in thousands)                    
        Fair Value Measurements at December 31, 2017
    Carrying Amount   Level 1   Level 2   Level 3   Total
Assets:                    
Cash and cash equivalents   $ 57,304       57,304       —         —         57,304  
Investment securities available for sale   $ 229,321       —         229,071       250       229,321  
Other investments   $ 1,830       —         —         1,830       1,830  
Mortgage loans held for sale   $ 857       —         —         857       857  
Loans, net   $ 753,398       —         —         735,837       735,837  
Cash surrender value of life insurance   $ 15,552       —         15,552       —         15,552  
                                         
Liabilities:                                        
Deposits   $ 906,952       —         —         894,932       894,932  
Securities sold under agreements                                        
to repurchase   $ 37,757       —         37,757       —         37,757  
Junior subordinated debentures   $ 20,619       —         20,619       —         20,619