v3.22.1

Additional paid-in capital (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Additional Paid-in Capital |
Schedule of share-based compensation, stock options, activity |
Schedule of share-based compensation, stock options, activity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Year Ended December 31, 2021 |  | Year Ended December 31, 2020
|  | Number of Options |  | Weighted Average Exercise Price |  | Number of Options |  | Weighted Average Exercise Price
Outstanding, beginning of year |  |  | 5,362,701,500 |  |  |  | 0.004 |  |  |  | 5,236,401,500 |  |  | $ | 0.003 |
Granted |  |  | 165,000,000 |  |  |  | 0.050 |  |  |  | 139,800,000 |  |  | $ | 0.047 |
Exercised |  |  | (800,000 | ) |  |  | (0.015 | ) |  |  | — |  |  | $ | — |
Cancelled |  |  | (29,900,000 | ) |  |  | (0.034 | ) |  |  | (13,500,000 | ) |  | $ | (0.034 | )
Outstanding, end of year |  |  | 5,497,001,500 |  |  |  | 0.006 |  |  |  | 5,362,701,500 |  |  | $ | 0.004 |
Exercisable, end of year |  |  | 5,221,701,500 |  |  |  | 0.004 |  |  |  | 5,202,701,500 |  |  | $ | 0.003 |
Schedule of Options Outstanding |
Schedule of Options Outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | December 31, 2021 |  | December 31, 2020
Expiry Date |  | Options |  | Exercise Price |  | Intrinsic Value |  | Options |  | Exercise Price |  | Intrinsic Value
July 1, 2021 |  |  | — |  |  | $ | 0.002 |  |  |  | 0.058 |  |  |  | 4,365,001,300 |  |  | $ | 0.002 |  |  | $ | 0.069 |
November 27, 2022 |  |  | 5,600,000 |  |  | $ | 0.015 |  |  |  | 0.045 |  |  |  | 6,950,000 |  |  | $ | 0.015 |  |  | $ | 0.056 |
January 31, 2023 |  |  | 40,500,000 |  |  | $ | 0.015 |  |  |  | 0.045 |  |  |  | 40,500,000 |  |  | $ | 0.015 |  |  | $ | 0.056 |
June 13, 2023 |  |  | 5,000,000 |  |  | $ | 0.015 |  |  |  | 0.045 |  |  |  | 5,000,000 |  |  | $ | 0.015 |  |  | $ | 0.056 |
October 1, 2023 |  |  | — |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | 300,000 |  |  | $ | 0.050 |  |  | $ | 0.021 |
February 3, 2024 |  |  | — |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 10,000,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
March 14, 2024 |  |  | 6,650,000 |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 9,150,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
April 12, 2024 |  |  | 4,925,001,500 |  |  | $ | 0.002 |  |  |  | 0.058 |  |  |  | 560,000,200 |  |  | $ | 0.002 |  |  | $ | 0.069 |
April 12, 2024 |  |  | 3,350,000 |  |  | $ | 0.015 |  |  |  | 0.045 |  |  |  | 3,900,000 |  |  | $ | 0.015 |  |  | $ | 0.056 |
April 12, 2024 |  |  | 200,000 |  |  | $ | 0.030 |  |  |  | 0.030 |  |  |  | 200,000 |  |  | $ | 0.030 |  |  | $ | 0.041 |
May 6, 2024 |  |  | 13,000,000 |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 13,000,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
May 17, 2024 |  |  | 77,000,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | 62,000,000 |  |  | $ | 0.050 |  |  | $ | 0.021 |
May 17, 2024 |  |  | 19,400,000 |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 25,400,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
June 17, 2024 |  |  | 5,000,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | 5,000,000 |  |  | $ | 0.050 |  |  | $ | 0.021 |
June 17, 2024 |  |  | — |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 5,000,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
August 16, 2024 |  |  | 2,500,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | 2,500,000 |  |  | $ | 0.050 |  |  | $ | 0.021 |
September 6, 2024 |  |  | 1,000,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | 1,000,000 |  |  | $ | 0.050 |  |  | $ | 0.021 |
September 17, 2024 |  |  | — |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 5,000,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
October 3, 2024 |  |  | 3,500,000 |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 3,500,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
October 24, 2024 |  |  | 2,000,000 |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 2,000,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
December 11, 2024 |  |  | 120,000,000 |  |  | $ | 0.015 |  |  |  | 0.045 |  |  |  | 120,000,000 |  |  | $ | 0.015 |  |  | $ | 0.056 |
April 1, 2025 |  |  | 10,000,000 |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 10,000,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
May 31, 2025 |  |  | 20,000,000 |  |  | $ | 0.035 |  |  |  | 0.025 |  |  |  | 20,000,000 |  |  | $ | 0.035 |  |  | $ | 0.036 |
May 31, 2025 |  |  | 87,300,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | 87,300,000 |  |  | $ | 0.050 |  |  | $ | 0.021 |
December 31, 2025 |  |  | 56,500,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | — |  |  | $ | — |  |  | $ | — |
June 30, 2026 |  |  | 26,000,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | — |  |  | $ | — |  |  | $ | — |
September 30, 2026 |  |  | 17,500,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | — |  |  | $ | — |  |  | $ | — |
December 31, 2026 |  |  | 50,000,000 |  |  | $ | 0.050 |  |  |  | 0.010 |  |  |  | — |  |  | $ | — |  |  | $ | — |
Total |  |  | 5,497,001,500 |  |  | $ | 0.006 |  |  |  | 0.054 |  |  |  | 5,362,701,500 |  |  | $ | 0.004 |  |  | $ | 0.066 |
Weighted Average Remaining Contractual Life |  |  |  |  |  |  | 2.37 |  |  |  |  |  |  |  |  |  |  |  | 1.05 |  |  |  |  |
Schedule of Fair Value of Stock Options Granted-Allocation |
Schedule of Fair Value of Stock Options Granted-Allocation |  |  |  |  |  |  |  |
|  | December 31, 2021 |  | December 31, 2020
Interest expense |  | $ | 3,425,120 |  |  | $ | — |
Product development expense |  |  | 222,178 |  |  |  | 1,156,195 |
Professional expense |  |  | 169,382 |  |  |  | 741,564 |
Selling, general and administration expenses |  |  | 586,538 |  |  |  | 930,258 |
Fair value of the stock options granted |  | $ | 4,403,218 |  |  | $ | 2,828,017 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions |  |  |  |  |  |  |  |
|  | December 31, 2021 |  | December 31, 2020
Risk-free interest rate |  |  | 0.87 | % |  |  | 0.20 | %
Expected life |  |  | 4.8 years |  |  |  | 4.6 years |
Expected dividends |  |  | 0 | % |  |  | 0 | %
Expected volatility |  |  | 278 | % |  |  | 312 | %
Forfeiture rate |  |  | 0 | % |  |  | 0 | %

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

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

X
- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration