XML 50 R58.htm IDEA: XBRL DOCUMENT v3.20.1
Long-Term Debt - Schedule of Long-term Debt Maturities of Principal Payments (Details)
Dec. 31, 2019
USD ($)
Echo Environmental, LLC [Member]  
2020 $ 749,990
2021 797,393
2022 846,574
2023 898,789
2024 3,396,761
Subtotal 6,689,507
Total 9,639,052
DGSE [Member]  
2020 516,516
2021 548,366
2022 582,188
2023 618,096
2024 684,379
Subtotal $ 2,949,545