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Note 7 - Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accrued expenses | $ 240 | $ 87
Accrued salaries and employee benefits | 861 | 961
Accrued clinical trial costs | 334 | 452
Grant liability | 590 | 615
Customer deposits | 96 | 90
Total | $ 2,121 | $ 2,205

X
- Definition Amount of accrued liabilities and liabilities classified as other, due within one year or the normal operating cycle, if longer. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided and employee benefits (due within one year or within the normal operating cycle if longer). + References No definition available. + Details
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X
- Definition Amount of obligations incurred for clinical trial costs, payable within one year or the normal operating cycle, if longer. + References No definition available. + Details
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X
- Definition The amount of customer deposit liabilities classified as current. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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X
- Definition Amount of obligations incurred for grants, payable within one year or the normal operating cycle, if longer. + References No definition available. + Details
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X
- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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