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INVENTORY (Narrative) (Details) (USD $)	12 Months Ended
	Nov. 30, 2014
Inventory 1	$ 120,246sdev_InventoryZeroTwoSixNineFourThreeOneEightSixdXkEighthtPFiveNnRd

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- Definition

Inventory 1

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No definition available.

+ Details

Name:	sdev_InventoryZeroTwoSixNineFourThreeOneEightSixdXkEighthtPFiveNnRd
Namespace Prefix:	sdev_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration