Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 64,196,000	$ 27,761,000
Depreciation, Depletion and Amortization	625,000	841,000
Gain (Loss) on Disposition of Property Plant Equipment	39,000	10,000
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Share-based compensation expense	2,923,000	2,583,000
Earnest Money Deposits and Pre-acquisition Costs Written-Off	59,000	43,000
Income (Loss) from Equity Method Investments	(5,687,000)	(3,891,000)
Distributions of income from unconsolidated entities	3,176,000	1,886,000
Changes in operating assets and liabilities:
Increase in receivables	(179,000)	(2,337,000)
Increase in inventory	(123,429,000)	(76,034,000)
Decrease (increase) in earnest money deposits	1,265,000	(1,009,000)
Decrease (increase) in other assets	4,476,000	(106,000)
Increase in accounts payable	(11,217,000)	(14,479,000)
Increase in accrued expenses	28,317,000	9,819,000
Increase (Decrease) in Contract with Customer, Liability	(992,000)	17,942,000
Net cash used in operating activities	(13,994,000)	(8,013,000)
Cash flows from investing activities:
Purchase of property and equipment, net of disposals	(448,000)	(740,000)
Net cash used in investing activities	(448,000)	(749,000)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Borrowings from lines of credit	112,000,000	108,000,000
Repayments of Lines of Credit	92,000,000	211,000,000
Payment, Tax Withholding, Share-based Payment Arrangement	1,075,000	834,000
Payments for Repurchase of Common Stock	(25,801,000)
Payments of Dividends	(655,000)	0
Payments to Noncontrolling Interests	5,718,000	0
Net cash provided by financing activities	1,123,000	18,565,000
Net (decrease) increase in cash and cash equivalents and restricted cash	(13,319,000)	9,803,000
Cash and cash equivalents, beginning of period	78,696,000	19,479,000
Restricted cash, beginning of period	14,858,000	14,156,000
Cash and cash equivalents and restricted cash, beginning of period	93,554,000	33,635,000
Cash and cash equivalents, end of period	66,083,000	28,688,000
Restricted cash, end of period	14,152,000	14,750,000
Cash and cash equivalents and restricted cash, end of period	80,235,000	43,438,000
Supplemental Cash Flow Information [Abstract]
Income Taxes Paid, Net	25,000	0
Earnest Money Deposits and Pre-acquisition Costs Written-Off	59,000	43,000
Proceeds from Notes Payable	14,472,000	0
Repayments of Notes Payable	(14,000)	(2,006,000)
Payments of Debt Issuance Costs	(86,000)	(595,000)
Payments to Acquire Equity Method Investments	0	(9,000)
Proceeds from Issuance of Senior Long-term Debt	$ 0	$ 125,000,000