v3.24.1

Note 10 - Equity, Share-based Compensation, Warrants and Securities Offerings - Warrants Activity (Details) - $ / shares			12 Months Ended
	Jan. 01, 2023	Jan. 01, 2022	Dec. 31, 2023	Dec. 31, 2022
Outstanding, balance (in shares)	2,298,769	875,067	2,298,769	875,067
Outstanding, weighted average exercise price (in dollars per share)	$ 1.76	$ 9.76	$ 1.76	$ 9.76
Nonvested, weighted average expense period (Year)	2 years 10 months 24 days	1 year 4 months 24 days	4 years 1 month 6 days	2 years 10 months 24 days
Issued (in shares)			4,324,802	2,063,000
Issued, weighted average exercise price (in dollars per share)			$ 0.21	$ 1.61
Issued, weighted average remaining contractual life (Year)			4 years 1 month 6 days	3 years 1 month 6 days
Before adjustment (in shares)			0	230,769
Before adjustment, weighted average exercise price (in dollars per share)			$ 0	$ 10
Before adjustment, weighted average remaining contractual life (Year)				4 years
After adjustment (in shares)			0	(230,769)
After adjustment, weighted average exercise price (in dollars per share)			$ 0	$ 2.72
After adjustment, weighted average remaining contractual life (Year)				4 years
Forfeited (in shares)			(2,230,769)
Forfeited, weighted average exercise price (in dollars per share)			$ 1.72
Forfeited, weighted average remaining contractual life (Year)			2 years 10 months 24 days
Expired (in shares)			(5,000)	(639,298)
Expired, weighted average exercise price (in dollars per share)			$ 20	$ 9.6
Outstanding, balance (in shares)			4,387,802	2,298,769
Outstanding, weighted average exercise price (in dollars per share)			$ 0.21	$ 1.76

Net number of non-option equity instruments after adjustment.

+ References

No definition available.

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- Definition

Net number of non-option equity instruments before adjustment.

+ References

No definition available.

+ Details

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

No definition available.

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- Definition

Represents weighted average exercise price of nonoption equity instruments after adjustment for share based compensation arrangement by share based payment award.

+ References

No definition available.

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- Definition

Represents weighted average exercise price of nonoption equity instruments before adjustment for share based compensation arrangement by share based payment award.

+ References

No definition available.

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- Definition

Represents the weighted average exercise price for expired non-option equity instruments.

+ References

No definition available.

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- Definition

Represents the weighted average exercise price for forfeited non-option equity instruments.

+ References

No definition available.

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- Definition

Represents weighted average exercise price of nonoption equity instruments granted for share based compensation arrangement by share based payment award.

+ References

No definition available.

+ Details

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- Definition

The weighted average remaining contractual terms of liability warrants after adjustment in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The weighted average remaining contractual terms of liability warrants before adjustment in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Represents the weighted average remaining contractual life of forfeited non-option equity instruments.

+ References

No definition available.

+ Details

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- Definition

The weighted average remaining contractual terms of liability warrants granted in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (e)(1)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

Number of shares under non-option equity instrument agreements that were either cancelled or expired.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)-(4)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

Net number of non-option equity instruments granted to participants.

+ References

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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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-Publisher FASB
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