XML 60 R47.htm IDEA: XBRL DOCUMENT
v3.23.1

Selected Balance Sheet Information - Schedule of Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Selected Balance Sheet Information |  |  |  |
Prepaid clinical research organizations | $ 2,293 |  |  | $ 458
Prepaid manufacturing expenses | 418 |  |  |
Prepaid insurance | 637 |  |  | 803
Receivable from prior owner | 144 |  |  |
Prepaid consulting, subscriptions and other expenses | 155 |  |  | 272
VAT receivable | 87 |  |  |
Total | $ 3,734 | $ 2,241 | $ 2,622 | $ 1,533

X
- Definition Amount of asset related to consideration to be receivable form Prior owner. + References No definition available. + Details
Name: | syn_AmountReceivableFromPriorOwner
Namespace Prefix: | syn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Sum of the amount paid in advance for clinical research organization. + References No definition available. + Details
Name: | syn_PrepaidClinicalResearchOrganizationsExpenseCurrent
Namespace Prefix: | syn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the amount paid in advance for consulting, subscriptions and other expenses. + References No definition available. + Details
Name: | syn_PrepaidConsultingSubscriptionsAndOtherExpenses
Namespace Prefix: | syn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of Prepaid Manufacturing Expense. + References No definition available. + Details
Name: | syn_PrepaidManufacturingExpense
Namespace Prefix: | syn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer. + References No definition available. + Details
Name: | us-gaap_OtherReceivablesNetCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(9)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_PrepaidExpenseAndOtherAssetsCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6387103&loc=d3e6435-108320 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (g)(1) -URI https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section 05 -Paragraph 5 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126905020&loc=d3e5879-108316 + Details
Name: | us-gaap_PrepaidInsurance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant