v3.22.1

Lines of credit (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Lines Of Credit |
Schedule of lines of credit activity |
Schedule of lines of credit activity |  |  |  |
|  | Total
Balance, December 31, 2019 |  | $ | 19,310,707 |
Advances received on lines of credit |  |  | 820,766 |
Repayment of principal borrowed on lines of credit (note 6(b)) |  |  | (1,038,967 | )
Interest incurred on lines of credit |  |  | 1,464,077 |
Repayment of interest on lines of credit (note 6(b)) |  |  | (8,642,491 | )
Balance, December 31, 2020 |  |  | 11,914,092 |
Advances received on lines of credit |  |  | 1,149,279 |
Interest incurred on lines of credit |  |  | 1,402,187 |
Repayment of interest on lines of credit (note 6(b)) |  |  | (456,725 | )
Balance, December 31, 2021 |  | $ | 14,008,833 |
Schedule of lines of credit |
Schedule of lines of credit |  |  |  |  |  |  |  |
Creditor | Interest Rate | Borrowing Limit | Repayment Terms | Principal Borrowed | Accrued Interest | Total Outstanding | Security | Purpose
Chairman and CEO | 1% per Month | $10,300,000 | Due on Demand | $10,220,700 | $1,208,582 | $11,429,282 | General Security over Assets | General Corporate Requirements
Wife of Chairman | 1% per Month | 4,000,000 | Due on Demand | 2,467,705 | 111,846 | 2,579,551 | General Security over Assets | General Corporate Requirements
Total |  | $14,300,000 |  | $12,688,405 | $1,320,428 | $14,008,833 |  |
As of December 31, 2020, the Company has two lines of credit as follows:
Creditor | Interest Rate | Borrowing Limit | Repayment Terms | Principal Borrowed | Accrued Interest | Total Outstanding | Security | Purpose
Chairman and CEO | 1% per Month | $10,300,000 | Due on Demand | $ 9,539,125 | $314,967 | $ 9,854,092 | General Security over Assets | General Corporate Requirements
Wife of Chairman | 1% per Month | 2,000,000 | Due on Demand | 2,000,000 | 60,000 | 2,060,000 | General Security over Assets | General Corporate Requirements
Total |  | $12,300,000 |  | $11,539,125 | $374,967 | $11,914,092 |  |

X
- References No definition available. + Details
Name: | ALRT_DisclosureLinesOfCreditAbstract
Namespace Prefix: | ALRT_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration