| Summary of changes in goodwill |
| | | | | | Goodwill | Balance at December 31, 2019 | | $ | 4,309,766 | Acquisition of ANC Smith’s | | | 2,185,748 | Acquisition of ANC Potter’s | | | 1,417,609 | Balance at December 31, 2020 | | | 7,913,123 | Acquisition of Zodega subsidiaries | | | 2,643,546 | Impairment of Zodega and Superior Services goodwill | | | (6,825,388) | Balance at December 31, 2021 | | $ | 3,731,281 |
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| Schedule of intangible assets |
| | | | | | | | | | | | | | | | | | | December 31, 2021 | | | Weighted average | | | | | | | | | | | | | | | amortization period | | | | | Accumulated | | | Impairment | | | | | | (in years) | | Gross | | Amortization | | | Loss | | Net | Tradenames | | 6.5 | | $ | 1,285,800 | | $ | (252,666) | | $ | — | | $ | 1,033,134 | Customer relationships | | 4.9 | | | 4,716,100 | | | (1,387,112) | | | (192,150) | | $ | 3,136,838 | Non-compete agreements | | 4.7 | | | 564,000 | | | (168,820) | | | — | | $ | 395,180 | | | | | $ | 6,565,900 | | $ | (1,808,598) | | $ | (192,150) | | $ | 4,565,152 |
| | | | | | | | | | | | | | | | December 31, 2020 | | | Weighted average | | | | | | | | | | | | amortization period | | | | | Accumulated | | | | | | (in years) | | Gross | | Amortization | | Net | Tradenames | | 7.5 | | $ | 932,000 | | $ | (125,708) | | $ | 806,292 | Customer relationships | | 5.7 | | | 3,289,000 | | | (611,709) | | $ | 2,677,291 | Non-compete agreements | | 6.6 | | | 564,000 | | | (79,893) | | $ | 484,107 | | | | | $ | 4,785,000 | | $ | (817,310) | | $ | 3,967,690 |
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