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Debt. (Tables)
3 Months Ended
Mar. 31, 2021
Debt Disclosure [Abstract]  
Schedule of long term debt
   March 31,
2021
   December 31,
2020
 
Kinergy line of credit  $45,554   $32,512 
Pekin revolving loan   17,580    20,580 
ICP revolving loan   9,384    9,384 
Parent notes payable   20,001    25,533 
CARES Act loans   9,860    9,860 
    102,379    97,869 
Less unamortized debt premium   174    230 
Less unamortized debt financing costs   (576)   (759)
Less short-term portion   (37,581)   (25,533)
Long-term debt  $64,396   $71,807 
Schedule of maturities of long-term debt

December 31:

    
2021  $20,001 
2022   82,378 
   $102,379