v3.22.1

Interest, advances and promissory notes payable (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Short-term Debt [Line Items] |
Schedule of activity of promissory notes payable to related parties |
Schedule of activity of promissory notes payable to related parties |  |  |  |  |  |  |  |
Promissory Notes Payable to Related Parties |  | December 31, 2021 |  | December 31, 2020
Promissory notes payable to relatives of directors collateralized by a general security agreement over all the assets of the Company, past maturity: |  |  |  |  |  |  |  |
i. Interest at 1% per month |  | $ | 720,619 |  |  | $ | 720,619 |
ii. Interest at 1.25% per month |  |  | 51,347 |  |  |  | 51,347 |
iii. Interest at the U.S. bank prime rate plus 1% |  |  | 100,000 |  |  |  | 100,000 |
iv. Interest at 0.5% per month |  |  | 695,000 |  |  |  | 695,000 |
Promissory notes payable, unsecured, to relatives of a director, bearing interest at 1% per month, past maturity |  |  | 1,475,000 |  |  |  | 1,465,000 |
Total Promissory Notes Payable to Related Parties |  | $ | 3,041,966 |  |  | $ | 3,031,966 |
Schedule of activities of promissory notes payable |
Schedule of accounts payable and accrued liabilities |  |  |  |  |  |  |  |
|  | December 31, 2021 |  | December 31, 2020
Accounts payable |  | $ | 806,059 |  |  | $ | 874,754 |
Accrued liabilities |  |  | 322,087 |  |  |  | 238,966 |
Deferred revenue |  |  | 2,400 |  |  |  | — |
Accounts payable and accrued liabilities |  | $ | 1,130,546 |  |  | $ | 1,113,720 |
Schedule of activity of promissory notes payable to unrelated parties |
Schedule of activity of promissory notes payable to unrelated parties |  |  |  |  |  |  |  |
Promissory Notes Payable to Unrelated Parties |  | December 31, 2021 |  | December 31, 2020
Unsecured promissory notes payable to unrelated lenders, past maturity: |  |  |  |  |  |  |  |
i. Interest at 1% per month |  | $ | 1,317,456 |  |  | $ | 1,337,456 |
ii. Interest at 0.667% per month |  |  | 425,000 |  |  |  | 435,985 |
iii. Interest at 0.625% per month |  |  | 150,000 |  |  |  | 150,000 |
iv. Non-interest-bearing |  |  | 270,912 |  |  |  | 270,912 |
Promissory notes payable, secured by a guarantee from the Chief Executive Officer, bearing interest at 1% per month, past maturity |  |  | 50,000 |  |  |  | 60,000 |
Total Promissory Notes Payable to Unrelated Parties |  | $ | 2,213,368 |  |  | $ | 2,254,353 |
Scheduled of summary of interest payable activity |
Scheduled of summary of interest payable activity |  |  |  |
Interest Payable |  | Carrying Value
Balance, December 31, 2019 |  | $ | 5,364,997 |
Interest incurred on promissory notes payable |  |  | 528,871 |
Interest payable retired through issuance of shares |  |  | (2,318,542 | )
Balance, December 31, 2020 |  |  | 3,575,326 |
Reclassified from promissory notes payable |  |  | 10,985 |
Interest incurred on promissory notes payable |  |  | 527,336 |
Interest payable retired through issuance of shares |  |  | (3,000 | )
Balance, December 31, 2021 |  | $ | 4,110,647 |
Schedule of Interest payable is due to related |
Schedule of Interest payable is due to related |  |  |  |  |  |  |  |
Interest Payable |  | December 31, 2021 |  | December 31, 2020
Related parties |  | $ | 1,200,170 |  |  | $ | 873,666 |
Non-related parties |  |  | 2,910,477 |  |  |  | 2,701,660 |
Interest payable |  | $ | 4,110,647 |  |  | $ | 3,575,326 |
Related Party [Member] |
Short-term Debt [Line Items] |
Schedule of promissory notes payable to related parties |
Schedule of promissory notes payable to related parties |  |  |  |
Promissory Notes Payable to Related Parties |  | Carrying Value
Balance, December 31, 2019 and 2020 |  | $ | 3,031,966 |
Transferred from promissory notes payable pursuant to private transaction |  |  | 10,000 |
Balance, December 31, 2021 |  | $ | 3,041,966 |
Un Related Party [Member] |
Short-term Debt [Line Items] |
Schedule of activities of promissory notes payable |
Schedule of activities of promissory notes payable |  |  |  |
Promissory Notes Payable to Unrelated Parties |  | Carrying Value
Balance, December 31, 2019 and 2020 |  | $ | 2,254,353 |
Reclassified to interest payable |  |  | (10,985 | )
Extinguished through issuance of shares of common stock (note 6) |  |  | (20,000 | )
Transferred to promissory notes payable pursuant to private transaction |  |  | (10,000 | )
Balance, December 31, 2021 |  | $ | 2,213,368 |

X
- References No definition available. + Details
Name: | ALRT_ScheduleOfPromissorNotesPayableToRelatedPartiesTextBlock
Namespace Prefix: | ALRT_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ALRT_ScheduledOfInterestPayableDueToRelatedTableTextBlock
Namespace Prefix: | ALRT_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ALRT_ScheduleofActivityofPromissoryNotestoUnrelatedPatiesTableTextBlock
Namespace Prefix: | ALRT_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ALRT_ScheduleofPromissoryNotesPayableRelativesofBoardofDirectorsTableTextBlock
Namespace Prefix: | ALRT_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of interest income and income classified as other. + References No definition available. + Details
Name: | us-gaap_InterestAndOtherIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ALRT_RelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ALRT_UnRelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |