Restructuring Plans - Additional Information (Details)	Nov. 28, 2018 USD ($) $ / shares
Restructuring And Related Activities [Abstract]
Severance payment	$ 864,000
Payment of other amounts due	$ 458,500
Exercise price (USD per share) \| $ / shares	$ 7.01
Exercise period	90 days
Additional stock-based compensation expense	$ 108,000

Supplemental unemployment benefits, additional share based compensation expense.

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- Definition

Supplemental Unemployment Benefits, Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price

+ References

No definition available.

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- Definition

Supplemental Unemployment Benefits, Share-Based Compensation Arrangement By Share-Based Payment Award, Remaining Options Exercisable, Period

+ References

No definition available.

+ Details

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- Definition

Payments of cash to employees, including wages and salaries, during the current period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585

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- References

No definition available.

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- Definition

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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