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Note 8 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Affiliated Entity [Member] | Tmg [Member]
Related Party Transaction, Purchases from Related Party	$ 100	$ 37	$ 100	$ 100
Revenues	0	0	0	0
Accounts Receivable, after Allowance for Credit Loss	0		0		$ 0
Accounts Payable	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, Right-of-Use Asset	300		300
Operating Lease, Liability	300		300
Chart E&C [Member]
Related Party Transaction, Purchases from Related Party	13	100	100	300
Revenues	0	$ 0	0	$ 0
Accounts Receivable, after Allowance for Credit Loss	0		0		$ 0
Accounts Payable	$ 0		$ 0
Common Stock, Ownership Percentage	7.90%		7.90%

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