CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Notes and interest receivable	$ 120,986	$ 83,541
Deferred revenue	9,468	17,522
Accounts payable and other liabilities	$ 26,115	$ 26,646
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized	10,000,000	10,000,000
Common stock, issued	8,717,967	8,717,967
Common stock, outstanding	8,717,767	8,717,767
Treasury stock, shares	200	200
Related Parties [Member]
Notes and interest receivable	$ 57,260	$ 51,945
Deferred revenue	9,468	17,522
Accounts payable and other liabilities	$ 935	$ 3