Note 9 - Operating Lease (Details Textual) |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2022
USD ($)
|
Dec. 31, 2021
USD ($)
|
Sep. 30, 2022
USD ($)
|
Jun. 30, 2022
USD ($)
ft²
|
|
| Operating Lease, Liability, Total | $ 459,000 | |||
| Operating Lease, Right-of-Use Asset | $ 424,000 | $ 42,000 | ||
| Operating Lease, Cost | 78,000 | 65,000 | ||
| Variable Lease, Cost | $ 25,000 | $ 56,000 | ||
| Minneapolis, MN [Member] | ||||
| Area of Real Estate Property | ft² | 6,000 | |||
| Lessee, Operating Lease, Term of Contract (Month) | 65 months | |||
| Operating Lease, Liability, Total | $ 446,000 | |||
| Operating Lease, Right-of-Use Asset | $ 446,000 | |||
| X | ||||||||||
- Definition Area of a real estate property. No definition available.
|
| X | ||||||||||
- Definition Term of lessee's operating lease, 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 single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| 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 Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|