Major Customers (Details) - Customers	12 Months Ended
Nov. 30, 2018	Nov. 30, 2017
Customer One [Member] \| Net sales [Member]
Major Customers (Textual)
Number of customers	2	1
Percentage of concentration risk	11.00%	12.00%
Customer One [Member] \| Accounts receivable [Member]
Major Customers (Textual)
Number of customers	2	1
Percentage of concentration risk	11.00%	11.00%
Customer Two [Member] \| Net sales [Member]
Major Customers (Textual)
Number of customers	2
Percentage of concentration risk	13.00%
Customer Two [Member] \| Accounts receivable [Member]
Major Customers (Textual)
Number of customers	2
Percentage of concentration risk	14.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration