XML 83 R69.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Schedule of Convertible Debentures, allocation of the purchase (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 22, 2018 | Nov. 30, 2018 | Nov. 30, 2017
Proceeds |  |  | $ 1,433,716
Additional paid in capital (equity warrants) |  | $ 524,089 |
Secured Convertible Debentures October 22, 2018 |  |  |
Proceeds | $ 1,275,000 |  |
Convertible notes | (131,547) |  |
Derivative liability-convertible promissory notes | (619,364) |  |
Additional paid in capital (equity warrants) | $ (524,089) |  |

X
- Definition Derivative liability convertible promissory notes. + References No definition available. + Details
Name: | sdev_DerivativeLiabilityConvertiblePromissoryNotes
Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise of warrants + References No definition available. + Details
Name: | sdev_StockIssuedDuringPeriodValueStockWarrantsExercised
Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_ConvertibleDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromConvertibleDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=sdev_SecuredConvertibleDebenturesOctoberTwentyTwoTwoZeroOneEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |