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Lease Obligations (Details Textual)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jul. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) ft²	Jun. 30, 2021 ft²	Feb. 29, 2020 ft²	Feb. 28, 2015 ft²
Lessee, Lease, Description [Line Items]
Operating lease assets, net	$ 11,380,000		$ 11,380,000			$ 6,806,000
Operating lease, liability	12,248,000		12,248,000			8,173,000
Operating lease, right-of-use asset, accumulated amortization	6,350,000		6,350,000			$ 4,349,000
Operating lease, payments	$ 834,000	$ 615,000	$ 2,293,000	$ 1,796,000
NORTH CAROLINA | Durham Office Space
Lessee, Lease, Description [Line Items]
Area of real estate | ft²							19,978
Operating lease assets, net					$ 2,063
Operating lease, liability					2,063
ALABAMA | Birmingham Office Space
Lessee, Lease, Description [Line Items]
Area of real estate | ft²						14,607		2,846	31,601
Operating lease assets, net					5,327
Operating lease, liability					$ 5,925
Tenant improvement allowance						$ 515
Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract (in years)	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract (in years)	3 years		3 years

X

- Definition

Amount of accumulated amortization on lessee's right to use underlying asset under operating lease.

+ References

No definition available.

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Area of a real estate property.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

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