FAIR VALUE MEASUREMENTS (Tables)
 3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Fair Value Disclosures [Abstract]    
Schedule of financial instruments measured at fair value on a recurring basis
    Fair Value Measurements at Reporting Date Using  
          Quoted Prices in     Significant     Significant  
          Active Markets for     Other Observable     Unobservable  
          Identical Assets     Inputs     Inputs  
(In thousands)   Total     Level 1     Level 2     Level 3  
March 31, 2019                                
State and municipal   $ 11,535     $ -     $ 11,535     $ -  
Asset-backed securities     6,048       -       6,048       -  
Mortgage-backed securities     32,079       -       32,079       -  
Totals   $ 49,662     $ -     $ 49,662     $ -  
                                 
December 31, 2018                                
State and municipal   $ 20,255     $ -     $ 20,255     $ -  
Asset-backed securities     6,371       -       6,371       -  
Government mortgage-backed securities     24,777       -       24,777       -  
Totals   $ 51,403     $ -     $ 51,403     $ -  
    Fair Value Measurements at Reporting Date Using  
          Quoted Prices in     Significant     Significant  
          Active Markets for     Other Observable     Unobservable  
          Identical Assets     Inputs     Inputs  
(In thousands)   Total     Level 1     Level 2     Level 3  
                         
December 31, 2018                                
State and municipal   $ 20,255     $ -     $ 20,255     $ -  
Asset-backed securities     6,371       -       6,371       -  
Mortgage-backed securities     24,777       -       24,777       -  
Totals   $ 51,403     $ -     $ 51,403     $ -  
                                 
December 31, 2017                                
State and municipal   $ 21,454     $ -     $ 21,454     $ -  
Asset-backed securities     7,517       -       7,517       -  
Government mortgage-backed securities     32,458       -       32,458       -  
Totals   $ 61,429     $ -     $ 61,429     $ -  
Schedule of financial instruments measured at fair value on a nonrecurring basis
    Fair Value Measurements at Reporting Date Using:  
          Quoted Prices in     Significant     Significant  
          Active Markets for     Other Observable     Unobservable  
          Identical Assets     Inputs     Inputs  
(In thousands)   Total     Level 1     Level 2     Level 3  
                         
March 31, 2019                                
Impaired loans   $ 4,476     $ -     $ -     $ 4,476  
Other real estate owned     1,720       -       1,720       -  
                                 
December 31, 2018                                
Impaired loans   $ 659     $ -     $ -     $ 659  
Other real estate owned     1,676       -       1,676       -  
    Fair Value Measurements at Reporting Date Using:  
          Quoted Prices in     Significant     Significant  
          Active Markets for     Other Observable     Unobservable  
          Identical Assets     Inputs     Inputs  
(In thousands)   Total     Level 1     Level 2     Level 3  
                         
December 31, 2018                                
Impaired loans   $ 659     $ -     $ -     $ 659  
Other real estate owned     1,676       -       1,676       -  
                                 
December 31, 2017                                
Impaired loans   $ 3,670     $ -     $ -     $ 3,670  
Schedule of summary of the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a nonrecurring basis
(In thousands)   Fair Value     Valuation Technique   Unobservable Input
               
March 31, 2019                
Impaired loans   $ 4,476      Real estate appraisals
and business valuation		   Discount for dated appraisals
and comparable company evaluations
                 
December 31, 2018                
Impaired loans   $ 659     Real estate appraisals
and business valuation		   Discount for dated appraisals
and comparable company evaluations
(In thousands)   Fair Value     Valuation Technique   Unobservable Input
               
December 31, 2018                
Impaired loans   $ 659      Real estate appraisals
   and business valuation		    Discount for dated appraisals
   and comparable company evaluations
                 
December 31, 2017                
Impaired loans   $ 3,670      Real estate appraisals    Discount for dated appraisals