XML 58 R47.htm IDEA: XBRL DOCUMENT
v3.25.3

Note 9 - Related Party Transactions - Schedule of Related Party Transactions (Details) - Related Party [Member] - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Equipment purchases and de-install costs | $ 1,243,000 | $ 524,000 | $ 4,412,000 | $ 3,461,000 |
Costs incurred to maintain equipment | 278,000 | 170,000 | 729,000 | 510,000 |
Total related party transactions | 1,521,000 | $ 694,000 | 5,141,000 | $ 3,971,000 |
Accounts payable, asset retirement obligation and other accrued liabilities | $ 1,471,000 |  | $ 1,471,000 |  | $ 2,270,000

X
- Definition Amount of accounts payable, asset retirement obligations and other accrued liabilities as of balance sheet date. + References No definition available. + Details
Name: | ams_AccountsPayableAssetRetirementObligationAndOtherAccruedLiabilities
Namespace Prefix: | ams_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 + Details
Name: | us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of operating expense for routine plant maintenance and repairs of regulated operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_UtilitiesOperatingExpenseMaintenance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |