XML 172 R36.htm IDEA: XBRL DOCUMENT
v3.24.4

Income Taxes (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of Income Tax Expense | Income tax expense (benefit) for each of the years ended December 31 consists of the following: Schedule of Income Tax Expense
(Dollars in thousands) |  | 2023 |  |  | 2022 |
Federal |  | $ | — |  |  | $ | — |
State |  |  | 40 |  |  |  | 42 |
Deferred |  |  | (1,107 | ) |  |  | (1,388 | )
Total |  | $ | (1,067 | ) |  | $ | (1,346 | )
Schedule of Deferred Income Tax Expense | The significant components of deferred income tax expense (benefit) from operations for each of the years ended December 31 consists of the following: Schedule of Deferred Income Tax Expense
(Dollars in thousands) |  | 2023 |  |  | 2022 |
Deferred tax expense (benefit) |  | $ | 2,566 |  |  | $ | (12,760 | )
Net operating loss carry forward |  |  | (9,813 | ) |  |  | (7,359 | )
Valuation allowance |  |  | 6,140 |  |  |  | 18,731 |
Deferred tax benefit (expense) |  | $ | (1,107 | ) |  | $ | (1,388 | )
Schedule of Effective Income Tax Rate | The Company’s effective income tax rate from operations differed from the Federal statutory rate for each of the years ended December 31 as follows: Schedule of Effective Income Tax Rate
|  | 2023 |  |  | 2022 |
Federal statutory tax rate |  |  | 21 | % |  |  | 21 | %
Change in valuation allowance |  |  | (15 | ) |  |  | (17 | )
State taxes, net of federal benefit |  |  | — |  |  |  | — |
Expiration of stock option |  |  | (1 | ) |  |  | — |
Loss on extinguishment of debt |  |  | (1 | ) |  |  | (2 | )
Other deferred Adjustments |  |  | (1 | ) |  |  | (1 | )
Tax rate |  |  | 3 | % |  |  | 1 | %
Schedule of Deferred Tax Assets | Schedule of Deferred Tax Assets
(Dollars in thousands) |  | 2023 |  |  | 2022 |
Deferred tax assets: |  |  |  |  |  |  |  |
Accruals and reserves |  | $ | 274 |  |  | $ | 251 |
Net operating loss |  |  | 28,951 |  |  |  | 19,137 |
Property, plant and equipment |  |  | 5,777 |  |  |  | 10,093 |
Stock options |  |  | 1,562 |  |  |  | 996 |
Research and development tax credit |  |  | 227 |  |  |  | 174 |
Deferred tax assets |  |  | 36,791 |  |  |  | 30,651 |
Valuation allowance |  |  | (36,791 | ) |  |  | (30,651 | )
Deferred tax assets, net of valuation allowance |  |  | — |  |  |  | — |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Intangibles |  |  | (7,779 | ) |  |  | (8,886 | )
Deferred tax liabilities |  |  | (7,779 | ) |  |  | (8,886 | )
Deferred tax liabilities, net |  | $ | (7,779 | ) |  | $ | (8,886 | )
Schedule of Deferred Tax Asset Valuation Allowance | Schedule of Deferred Tax Asset Valuation Allowance
(Dollars in thousands) |  | 2023 |  |  | 2022 |
Valuation allowance, beginning of year |  | $ | 30,651 |  |  | $ | 11,921 |
Net operating (loss) income |  |  | 9,813 |  |  |  | 7,361 |
Property, plant and equipment |  |  | (4,316 | ) |  |  | 10,093 |
Stock options |  |  | 566 |  |  |  | 996 |
Research and development credit |  |  | 53 |  |  |  | 30 |
Accrued expenses |  |  | 24 |  |  |  | 250 |
Valuation allowance, end of year |  | $ | 36,791 |  |  | $ | 30,651 |

X
- Definition Schedule Of Deferred Income Tax Expense [Table Text Block] + References No definition available. + Details
Name: | SLNH_ScheduleOfDeferredIncomeTaxExpenseTableTextBlock
Namespace Prefix: | SLNH_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

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://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + 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://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + 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://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + 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 valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
Name: | us-gaap_SummaryOfValuationAllowanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration