ACQUISITION - Martino & Partners Acquisition - Preliminary Allocation of the Purchase Price to the Estimated Fair Values of the Assets Acquired and Liabilities Assumed (Details) - USD ($)	Sep. 01, 2025	Mar. 31, 2026	Dec. 31, 2025
ACQUISITION
Goodwill		$ 89,330,000	$ 89,375,000
Martino & Partners
ACQUISITION
Cash	$ 2,331,000
Deferred purchase consideration	410,000
Contingent liabilities	468,000
ISG common stock	250,000
Total allocable purchase price	3,459,000
Current assets	1,050,000
Intangible assets	1,020,000
Fixed assets	22,000
Current liabilities	(376,000)
Debt assumed	(34,000)
Net assets acquired	1,682,000
Goodwill	$ 1,777,000