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OPERATING LEASES
12 Months Ended
Dec. 31, 2017
OPERATING LEASES [Abstract]  
OPERATING LEASES
16. OPERATING LEASES
The following schedule shows future minimum rental payments under operating leases with noncancellable terms in excess of one year as of December 31, 2017 (in thousands):
 
2018
 
$
324
 
2019
  
327
 
2020
  
219
 
2021
  
171
 
2022
  
158
 
Thereafter
  
141
 
Total
 
$
1,340
 
 
The Company's operating lease obligations represent short and long-term lease and rental payments for facilities. Total rental expense for all operating leases for the years ended December 31, 2017, 2016 and 2015 were $351,000, $289,000 and $175,000, respectively.