XML 74 R37.htm IDEA: XBRL DOCUMENT
v3.21.2

Note 16 - Income Taxes (Tables) | 12 Months Ended
--- | ---
Jul. 31, 2021
Notes Tables |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Year Ended July 31, |
|  | 2021 |  |  | 2020 |
Federal income tax provision rate |  |  | 21.00 | % |  |  | 21.00 | %
State income tax provision rate, net of federal income tax effect |  |  | 0.83 | % |  |  | 0.72 | %
Total income tax provision rate |  |  | 21.83 | % |  |  | 21.72 | %
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Year Ended July 31, |
|  | 2021 |  |  | 2020 |
Loss before income taxes |  | $ | (14,817,818 | ) |  | $ | (14,616,067 | )
Corporate tax rate |  |  | 21.83 | % |  |  | 21.72 | %
Expected tax recovery |  |  | (3,234,730 | ) |  |  | (3,174,610 | )
Increase (decrease) resulting from |  |  |  |  |  |  |  |
Foreign tax rate differences |  |  | 77,454 |  |  |  | 85,796 |
Permanent differences |  |  | (217,615 | ) |  |  | 170,023 |
Prior year true-up |  |  | (270,078 | ) |  |  | 117,800 |
Change in state tax rate |  |  | (405,826 | ) |  |  | (553,365 | )
Foreign exchange rate differences |  |  | (55,666 | ) |  |  | 17,456 |
Other |  |  | 162,812 |  |  |  | 71,805 |
Change in valuation allowance |  |  | 3,939,641 |  |  |  | 3,233,427 |
Tax adjustment from operations |  |  | (4,008 | ) |  |  | (31,668 | )
Unrealized loss, other comprehensive loss |  |  | - |  |  |  | 26,117 |
Deferred tax benefits |  | $ | (4,008 | ) |  | $ | (5,551 | )
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
|  | Year Ended July 31, |
|  | 2021 |  |  | 2020 |
United States |  | $ | (14,297,315 | ) |  | $ | (13,962,287 | )
Canada |  |  | 93,402 |  |  |  | 53,960 |
Paraguay |  |  | (613,905 | ) |  |  | (707,740 | )
|  | $ | (14,817,818 | ) |  | $ | (14,616,067 | )
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | July 31, 2021 |  |  | July 31, 2020 |
Deferred tax assets (liabilities) |  |  |  |  |  |  |  |
Mineral properties |  | $ | 1,277,053 |  |  | $ | 1,270,292 |
Exploration costs |  |  | 6,546,397 |  |  |  | 6,384,265 |
Stock option expense |  |  | 4,623,357 |  |  |  | 4,594,159 |
Depreciable property |  |  | (1,163,533 | ) |  |  | (1,157,934 | )
Inventories |  |  | (3,607,772 | ) |  |  | (3,550,814 | )
Asset retirement obligations |  |  | 107,499 |  |  |  | 62,626 |
Other |  |  | 80,834 |  |  |  | 58,559 |
Section 163(j) interest expense carry forwards |  |  | 1,061,263 |  |  |  | 733,343 |
Loss carry forwards |  |  | 49,987,843 |  |  |  | 46,552,687 |
|  |  | 58,912,941 |  |  |  | 54,947,183 |
Valuation allowance |  |  | (58,912,941 | ) |  |  | (54,973,300 | )
Deferred tax assets |  |  | - |  |  |  | (26,117 | )
Deferred tax assets, other comprehensive loss |  |  | - |  |  |  | 26,117 |
Deferred tax liabilities |  |  |  |  |  |  |  |
Mineral properties |  |  | (540,992 | ) |  |  | (545,000 | )
Net deferred tax liabilities |  | $ | (540,992 | ) |  | $ | (545,000 | )
Summary of Operating Loss Carryforwards [Table Text Block] |
July 31, 2023 |  | $ | 180,892 |
July 31, 2024 |  |  | 228,757 |
July 31, 2025 |  |  | 507,833 |
July 31, 2026 |  |  | 5,895,221 |
July 31, 2027 |  |  | 3,892,722 |
Remaining balance |  |  | 162,246,385 |
|  | $ | 172,951,810 |
July 31, 2027 |  | $ | 183,105 |
July 31, 2028 |  |  | 629,788 |
July 31, 2029 |  |  | 769,072 |
July 31, 2030 |  |  | 764,230 |
July 31, 2031 |  |  | 1,570,266 |
Remaining balance |  |  | 969,872 |
|  | $ | 4,886,333 |

X
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
Name: | us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
Name: | us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
Name: | us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
Name: | us-gaap_SummaryOfOperatingLossCarryforwardsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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