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Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |
Total net amortized intangible assets | $ 686 | $ 955 |
Intangible assets acquired | 1,800 | 0 |
Total net amortized intangible assets | 2,128 | 686 | $ 955
Amortization | (358) | (269) |
Intangible assets acquired | 1,800 | 0 |
Total net intangible assets | 4,565 | 3,123 | 3,392
NLEX [Member] | Trade Name [Member] |  |  |
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |
Unamortized intangible assets | 2,437 | $ 2,437 | $ 2,437
ALT [Member] | Trade Name [Member] |  |  |
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |
Finite-Lived intangible asset, useful life |  | 20 years |
Finite-Lived intangible assets, remaining amortization period |  | 19 years 8 months 12 days |
Intangible assets acquired | 650 |  |
Total net amortized intangible assets | 639 |  |
Amortization | (11) |  |
Customer Relationships [Member] | HGP [Member] |  |  |
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |
Finite-Lived intangible asset, useful life |  | 12 years | 12 years
Finite-Lived intangible assets, remaining amortization period |  | 1 year | 2 years
Total net amortized intangible assets | 62 | $ 92 |
Total net amortized intangible assets | 30 | 62 | $ 92
Amortization | (32) | $ (30) |
Customer Relationships [Member] | NLEX [Member] |  |  |
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |
Finite-Lived intangible asset, useful life |  | 7 years 7 months 6 days | 7 years 7 months 6 days
Finite-Lived intangible assets, remaining amortization period |  |  | 1 year
Total net amortized intangible assets | 111 | $ 221 |
Intangible assets acquired |  | 0 |
Total net amortized intangible assets |  | 111 | $ 221
Amortization | (110) | $ 110 |
HGP Trade Name [Member] |  |  |
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |
Finite-Lived intangible asset, useful life |  | 14 years | 14 years
Finite-Lived intangible assets, remaining amortization period |  | 3 years | 4 years
Total net amortized intangible assets | 513 | $ 642 |
Total net amortized intangible assets | 386 | 513 | $ 642
Amortization | $ (128) | $ (129) |
Vendor Relationships [Member] | ALT [Member] |  |  |
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |
Finite-Lived intangible asset, useful life |  | 5 years |
Finite-Lived intangible assets, remaining amortization period | 5 years | 4 years 8 months 12 days |
Intangible assets acquired | $ 1,150 |  |
Total net amortized intangible assets | 1,073 |  |
Amortization | $ (77) |  |

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