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Business Segments and Foreign Operations (Summarized Information By Reportable Segments) (Details) $ in Thousands | 3 Months Ended
--- | ---
Nov. 30, 2018 USD ($) item | Nov. 30, 2017 USD ($)
Segment Reporting Information [Line Items] |  |  |
Number of reportable segments | item |  | 3 |
Net sales |  | $ 101,282 | $ 97,597
Income from operations |  | 16,401 | 17,136
Depreciation and amortization expense |  | 1,925 | 1,917
Interest income |  | 51 | 133
Interest expense |  | 710 | 841
Unallocated Corporate [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Income from operations | [1] | (7,017) | (6,350)
Depreciation and amortization expense | [1] | 52 | 192
Americas Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales |  | 47,791 | 46,163
Income from operations |  | 11,302 | 11,030
Depreciation and amortization expense |  | 1,131 | 1,094
Interest income |  | 6 | 1
Interest expense |  | 708 | 839
EMEA Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales |  | 38,745 | 35,028
Income from operations |  | 8,375 | 7,836
Depreciation and amortization expense |  | 672 | 559
Interest income |  | 18 | 119
Asia-Pacific Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales |  | 14,746 | 16,406
Income from operations |  | 3,741 | 4,620
Depreciation and amortization expense |  | 70 | 72
Interest income |  | 27 | 13
Interest expense |  | $ 2 | $ 2
[1] | Unallocated corporate expenses are general corporate overhead expenses not directly attributable to any one of the business segments. These expenses are reported separate from the Company's identified segments and are included in Selling, General and Administrative expenses on the Company's condensed consolidated statements of operations.

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