INCOME TAXES - NOL (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Y	Dec. 31, 2022 USD ($)
Federal
Operating loss carryforwards
Operating loss carryforwards	$ 0.6
State
Operating loss carryforwards
Operating loss carryforwards	26.4
Valuation allowance, NOLs	0.5	$ 0.4
State tax department of Panther
Operating loss carryforwards
Operating loss carryforwards	1.4
State tax department of other subsidiaries
Operating loss carryforwards
Operating loss carryforwards	$ 9.7
Number of prior years with taxable losses | Y	3
Minimum | State tax department of Panther
Operating loss carryforwards
Carryforward expiration period	10 years
Maximum | State tax department of Panther
Operating loss carryforwards
Carryforward expiration period	20 years