XML 28 R32.htm IDEA: XBRL DOCUMENT v3.19.3

EXCLUSIVE SUPPLY AND PURCHASE AGREEMENTS (Narrative) (Details)	9 Months Ended
	Aug. 31, 2019
BIP manufacturer [Member]
Term of agreement	4 years
Additional term of agreement	1 year
Safariland, LLC [Member]
Term of agreement	4 years
Additional term of agreement	1 year

X

- Definition

It represents additional term of agreement.

+ References

No definition available.

+ Details

Name:	sdev_ExtensionForAdditionalTermOfAgreement
Namespace Prefix:	sdev_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

It represents term of agreement.

+ References

No definition available.

+ Details

Name:	sdev_TermOfAgreement
Namespace Prefix:	sdev_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=sdev_BipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=sdev_SafarilandLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: