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DEBT. (Tables)
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Schedule of long term debt
   December 31,
2019
   December 31,
2018
 
Kinergy line of credit  $78,338   $57,057 
Pekin term loan   39,500    43,000 
Pekin revolving loan   32,000    32,000 
ICP term loan   12,000    16,500 
ICP revolving loan   18,000    18,000 
Parent notes payable   65,649    66,948 
    245,487    233,505 
Less unamortized debt premium (discount)   461    (690)
Less unamortized debt financing costs   (2,153)   (1,377)
Less short-term portion   (63,000)   (146,671)
Long-term debt  $180,795   $84,767 
Schedule of maturities of long-term debt
December 31:    
2020  $63,000 
2021   94,149 
2022   88,338 
2023    
2024    
   $245,487