Net Income (Loss) Per Share - Calculation Of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss attributable to AON Inc. for basic earnings per share	$ (1,069)	$ (1,792)	$ (5,289)	$ (1,792)
Net loss attributable to AON Inc. for diluted earnings per share	(1,069)	(1,792)	(5,289)	(1,792)
Less: Series A Preferred Cumulative Dividends	(1,431)	(133)	(4,166)	(133)
Less: Series A Preferred Deemed Dividend	0	(2,089)	0	(2,089)
Net loss attributable to Class A Common Stockholders	(2,500)	(4,014)	(9,455)	(4,014)
Reallocation of net loss attributable to Class A Common Stockholders as a result of the impact and conversion of dilutive securities	0	0	(24,463)	0
Net loss attributable to Class A Common Stockholders for diluted earnings per share	$ (2,500)	$ (4,014)	$ (33,918)	$ (4,014)
Weighted average shares for basic earnings per share (in shares)	13,264,403	6,614,229	10,527,469	6,614,229
Effect of dilutive securities:
Weighted-average shares for diluted earnings per share (in shares)	13,264,403	6,614,229	36,225,302	6,614,229
Earnings Per Share
Basic loss per share of Class A Common Stock (in dollars per share)	$ (190)	$ (0.61)	$ (900)	$ (0.61)
Dilutive loss per share of Class A Common Stock (in dollars per share)	$ (190)	$ (0.61)	$ (940)	$ (0.61)
Series A Preferred Stock
Effect of dilutive securities:
Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares)	0	0	0	0
Class B Common Stock
Effect of dilutive securities:
Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares)	0	0	22,697,588	0
Class B Prefunded Warrants
Effect of dilutive securities:
Class B Prefunded warrants	0	0	3,000,245	0
Restricted Stock Units
Effect of dilutive securities:
Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares)	0	0	0	0
Common Class A
Earnings Per Share
Basic loss per share of Class A Common Stock (in dollars per share)	$ (0.19)	$ (0.61)	$ (0.90)	$ (0.61)
Dilutive loss per share of Class A Common Stock (in dollars per share)	$ (0.19)	$ (0.61)	$ (0.94)	$ (0.61)