Note 8 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Affiliated Entity [Member] \| Tmg [Member]
Related Party Transaction, Purchases from Related Party	$ 100	$ 100	$ 200	$ 200
Revenues	0	0	0	0
Accounts Receivable, after Allowance for Credit Loss	0		$ 0		$ 0
Affiliated Entity [Member] \| Board of Directors Chairman [Member] \| Tmg [Member]
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest			50.00%
The Modern Group [Member] \| Office Space [Member]
Operating Lease, Monthly Rent Expense			$ 28
Operating Lease, Liability	200		200
Operating Lease, Right-of-Use Asset	200		200
The Modern Group [Member] \| New Office Lease [Member]
Operating Lease, Liability	900		900
Operating Lease, Right-of-Use Asset	900		900
Chart E&C [Member]
Related Party Transaction, Purchases from Related Party	0	100	100	400
Revenues	0	$ 0	0	$ 0
Accounts Receivable, after Allowance for Credit Loss	$ 0		$ 0		0
Common Stock, Ownership Percentage	7.90%		7.90%
Accounts Payable	$ 0		$ 0		$ 0

Represents ownership percentage of common stock owned.

No definition available.

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- Definition

Amount of monthly rent expense under operating lease.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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- Definition

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

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- Definition

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

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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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