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Acquisitions (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands | Aug. 30, 2019 | Aug. 21, 2018
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Apeks |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair Value, finite-lived intangible assets acquired | $ 5,061 |
Apeks | Trademarks |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair value , indefinite-lived intangible assets acquired | 900 |
Apeks | Technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair Value, finite-lived intangible assets acquired | $ 793 |
Estimated Useful Life | 9 years |
Apeks | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair Value, finite-lived intangible assets acquired | $ 3,368 |
Estimated Useful Life | 9 years |
SolarBOS |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair Value, finite-lived intangible assets acquired |  | $ 1,450
SolarBOS | Trademarks |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair Value, finite-lived intangible assets acquired |  | $ 300
Estimated Useful Life |  | 3 years
SolarBOS | Technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair Value, finite-lived intangible assets acquired |  | $ 450
Estimated Useful Life |  | 9 years
SolarBOS | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Fair Value, finite-lived intangible assets acquired |  | $ 700
Estimated Useful Life |  | 9 years

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