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OPERATING LEASES
12 Months Ended
Dec. 31, 2017
OPERATING LEASES [Abstract]  
OPERATING LEASES

8.   OPERATING LEASES



We lease certain machinery, trucks, and facilities under operating leases that generally provide for renewal options.  We incurred approximately $1,371,000,  $1,279,000, and $1,335,000 in rent expense under operating lease arrangements for 2017,  2016 and 2015, respectively.



Future minimum lease payments under non-cancelable operating leases are approximately as follows for the years ended December 31:





 

 



 

Years ended



 

December 31,

2018

$

789,903 

2019

 

309,991 

2020

 

186,651 

2021

 

80,335 

2022

 

7,334 

Total

$

1,374,214