XML 53 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8

Property, Plant and Equipment, Schedule of Significant Acquisitions and Disposals (Details)	9 Months Ended
	Aug. 31, 2013 Y
Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 1	30.00%
Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 2	30.00%
Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 3	20.00%
Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 4	5

X

- Definition

Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 2

+ References

No definition available.

+ Details

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

X

- Definition

Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 1

+ References

No definition available.

+ Details

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

X

- Definition

Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 4

+ References

No definition available.

+ Details

Name:	sdev_PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenJFourcwpNinexWEightdNineSeven
Namespace Prefix:	sdev_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Property And Equipment Property, Plant And Equipment, Schedule Of Significant Acquisitions And Disposals 3

+ References

No definition available.

+ Details

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