Loans and Financing Receivables - Allowance for Credit Loss Roll-Forward (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Roll-forward of the allowance for credit losses
Balance at beginning of period	$ (168,000)	$ (92,000)
Initial allowance for financing / loan receivables	0	0
Recoveries	0	0
Balance at beginning of period	$ (168,000)	$ (92,000)