SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other Current Liabilities and Other Long Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Other current liabilities
Customer advances and unearned income	$ 2,499	$ 2,200
Unearned event income	2,292	1,152
Professional fee accrual	1,851	3,781
Operating expense accruals	2,208	2,512
Accrued unvested stock compensation	85	336
Employment agreement award (as defined in Note 5)	3,755	3,044
Deferred barter revenue	1,638	1,688
Other	3,883	5,673
Total other current liabilities	18,211	20,386
Other long-term liabilities
Employment agreement award (as defined in Note 5)	7,308	7,382
Reserve for uncertain tax position	1,829	1,829
Other	1,606	3,577
Total long-term liabilities	$ 10,743	$ 12,788