Note 2 - Significant Accounting Policies (Details Textual) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2020
USD ($)
|
Jan. 01, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
|
Jan. 01, 2019
USD ($)
|
|
| Operating Lease, Right-of-Use Asset | $ 925 | $ 1,837 | $ 1,376 | $ 1,570 |
| Operating Lease, Liability, Total | $ 1,074 | 1,532 | $ 1,647 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) | 10 years | |||
| Number of Operating Segments | 1 | |||
| Accounting Standards Update 2016-02 [Member] | ||||
| Operating Lease, Right-of-Use Asset | $ 1,570 | |||
| Landlord Inducements | $ 78 |
| X | ||||||||||
- Definition Landlord inducements made. No definition available.
|
| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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