Note 5 - Leases (Details Textual) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2022
USD ($)
ft²
|
Jun. 30, 2021
USD ($)
|
Jun. 30, 2022
USD ($)
ft²
|
Jun. 30, 2021
USD ($)
|
Jun. 30, 2020 |
|
| Operating Lease, Payments | $ | $ 315,000 | $ 344,000 | $ 637,000 | $ 702,000 | |
| HONG KONG | |||||
| Area of Land (Square Foot) | 7,300 | 7,300 | |||
| Rolling Hills Estates [Member] | |||||
| Area of Land (Square Foot) | 4,900 | 4,900 | |||
| Lessee, Operating Lease, Renewal Term (Year) | 5 years | ||||
| Richmond, British Columbia [Member] | |||||
| Area of Land (Square Foot) | 1,600 | 1,600 | |||
| Metuchen, New Jersey [Member] | |||||
| Area of Land (Square Foot) | 2,000 | 2,000 | |||
| CHINA | |||||
| Lessee, Number of Branches | 7 | 7 | |||
| X | ||||||||||
- Definition Represents the lessees' number of branches. No definition available.
|
| X | ||||||||||
- Definition Area of land held. No definition available.
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| X | ||||||||||
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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