Note 5 - Note Payable (Details Textual) - Securities Purchase Agreement [Member] - Note Holders [Member] |
3 Months Ended | 12 Months Ended | |
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May 16, 2022
USD ($)
$ / shares
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Mar. 31, 2023
USD ($)
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Dec. 31, 2022
USD ($)
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| Debt Instrument, Face Amount | $ 4,320,000 | ||
| Debt Instrument, Discount, Percent | 8.00% | ||
| Debt Instrument, Interest Rate, Stated Percentage | 9.00% | ||
| Debt Instrument, Term | 12 months | ||
| Debt Instrument, Convertible, Conversion Price | $ / shares | $ 4.00 | ||
| Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger | 90.00% | ||
| Debt Instrument, Convertible, Threshold Trading Days | 10 | ||
| Debt Instrument, Redemption Price, Percentage Requirement | 50.00% | ||
| Interest Expense, Debt | $ 0 | ||
| Interest Paid, Excluding Capitalized Interest, Operating Activities | 180,000 | $ 180,000 | |
| Debt Instrument, Unamortized Discount | $ 320,000 | 40,000 | |
| Amortization of Debt Discount (Premium) | 40,000 | ||
| Repayments of Debt | 539,000 | ||
| Convertible Notes Payable | 0 | 539,000 | |
| Interest Payable | $ 0 | $ 180,000 |
| X | ||||||||||
- Definition The percent discount of debt instrument. No definition available.
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- Definition Represents percentage of redemption price required for debt instrument. No definition available.
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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion. No definition available.
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- Definition Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature. No definition available.
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| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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| X | ||||||||||
- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest payable on debt, including, but not limited to, trade payables. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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- Details
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