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Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2019 | Jul. 31, 2018
Weighted Average Amortization Period | 12 years | 4 years 9 months 18 days
Gross Carrying amount | $ 7,701 | $ 3,552
Accumulated Amortization | (3,505) | (3,056)
Net Balance | $ 4,196 | $ 496
Noncompete Agreements [Member] |  |
Weighted Average Amortization Period | 5 years |
Gross Carrying amount | $ 595 |
Accumulated Amortization | (104) |
Net Balance | $ 491 |
Customer Relationships [Member] |  |
Weighted Average Amortization Period | 11 years 10 months 25 days | 4 years 9 months 18 days
Gross Carrying amount | $ 6,136 | $ 3,154
Accumulated Amortization | (3,081) | (2,883)
Net Balance | $ 3,055 | $ 271
Trade Names [Member] |  |
Weighted Average Amortization Period | 17 years | 4 years 8 months 12 days
Gross Carrying amount | $ 970 | $ 398
Accumulated Amortization | (320) | (173)
Net Balance | $ 650 | $ 225

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