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8. Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Long-Term Debt
Long-Term debt at December 31, 2020 and 2019 is as follows:        
    2020     2019  
Note payable to Zeo Inc., non interest bearing,            
payable in 11 quarterly installments of $8,300 with a final payment of $8,700;            
maturing December 2022; uncollateralized.   $ 66,800     $ 100,000  
Note payable to Cat Financial Services, bearing interest at 6%;                
payable in monthly installments of $778; maturing                
December 2022; collateralized by equipment.     17,480       26,250  
Note payable to De Lage Landen Financial Services,                
bearing interest at 3.51%; payable in monthly installments of $655;                
maturing September 2019; collateralized by equipment.             700  
Note payable to Phyllis Rice, bearing interest                
at 1%; payable in monthly installments of $2,000; originally maturing                
March 2015; collateralized by equipment.     2,146       6,146  
      86,426       133,096  
Less current portion     (52,122 )     (56,334 )
Long-term portion   $ 34,304     $ 76,762  
Principal Payments on Debt

12 Months Ending December 31,

  Principal Payment  
2021     52,122  
2022     34,304  
    $ 86,426