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New Accounting Standards (Details Textual) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jan. 01, 2017 | Jan. 01, 2017
Cost of goods sold |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |
Reclassification of expense resulted from adoption of accounting guidance | $ 199,000 | $ 397,000
Engineering, selling and administrative expenses |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |
Reclassification of expense resulted from adoption of accounting guidance | $ 86,000 | $ 173,000

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