Accrued Expenses and Other Liabilities Accrued Expenses and Other Liabilities - Warranty (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Insurance Settlements Receivable	$ 915,000	$ 1,202,000
Adjustment to warranty accrual	100,000	900,000
Estimated probable recoveries		600,000	$ 600,000
Increase (Decrease) in Insurance Settlements Receivable	300,000
Homebuilding Segment [Member]
Adjustment related to higher warranty expenditures	43,000
Adjustment to warranty accrual	(277,000)	409,000	(1,065,000)
Adjustment related to lower warranty expenditures		800,000
Fee Building Segment [Member]
Adjustment related to higher warranty expenditures	30,000	63,000
Adjustment to warranty accrual	62,000	$ (95,000)	$ 0
Increase (Decrease) in Insurance Settlements Receivable	$ 32,000