XML 62 R39.htm IDEA: XBRL DOCUMENT v3.19.3

Schedule of Depreciation Rate, Plant and Equipment (Details)	9 Months Ended
	Aug. 31, 2019
Computer Equipment and Software [Member]
Depreciation method	declining balance method
Property Plant And Equipment Depreciation Rate	30.00%
Furniture and Fixtures [Member]
Depreciation method	declining balance method
Property Plant And Equipment Depreciation Rate	30.00%
Moulds [Member]
Depreciation method	straight line
Property, Plant and Equipment, Useful Life	5 years
Property Plant And Equipment Depreciation Rate	20.00%

X

- Definition

Property Plant and Equipment Depreciation Rate

+ References

No definition available.

+ Details

Name:	sdev_PropertyPlantAndEquipmentDepreciationRate
Namespace Prefix:	sdev_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Description of the methodology for computing depreciation for classes of depreciable assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

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X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

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