Annual report pursuant to Section 13 and 15(d)

Cover
- Cover
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Summary of Warrant Activity (Details)

v3.23.1

Summary of Warrant Activity (Details) - shares	12 Months Ended
Summary of Warrant Activity (Details) - shares	Dec. 31, 2022	Dec. 31, 2021
Warrant [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of warrants outstanding, beginning	20,000	20,000
Number of warrants exercised
Number of warrants expired	(7,000)
Number of warrants outstanding, ending	13,000	20,000
Warrant Liabilities [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of warrants outstanding, beginning	13,268
Number of warrants granted
Number of warrants outstanding, ending	6,732	13,268
May 2018 Warrants [Member] \| Equity [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of warrants outstanding, beginning	7,000	7,000
Number of warrants exercised
Number of warrants granted
Number of warrants expired	(7,000)
Number of warrants outstanding, ending		7,000
Warrant expiration date	Oct. 27, 2022
October 2013 Warrants [Member] \| Warrant Liabilities [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of warrants outstanding, beginning	2,000	2,000
Number of warrants exercised
Number of warrants granted
Number of warrants expired
Number of warrants outstanding, ending	2,000	2,000
Warrant expiration date	Oct. 24, 2023
January 2014 Warrants [Member] \| Warrant Liabilities [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of warrants outstanding, beginning	11,000	11,000
Number of warrants exercised
Number of warrants granted
Number of warrants expired
Number of warrants outstanding, ending	11,000	11,000
Warrant expiration date	Jan. 16, 2024

- Definition

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+ References

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- Definition

Number of non-option equity instruments exercised by participants.

+ References

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Number of shares under non-option equity instrument agreements for which rights to exercise lapsed.

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

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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