Related Party Transactions (Details) $ in Thousands			1 Months Ended	3 Months Ended			12 Months Ended
	Oct. 23, 2017 USD ($)	Jun. 29, 2015 USD ($)	Aug. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) investment	Dec. 31, 2016 USD ($) investment	Dec. 31, 2015 USD ($)	Sep. 30, 2017 USD ($)
Related Party Transaction [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							7.25%
Due from affiliates							$ 1,060	$ 1,138
Equity Method Investments, Number | investment							10	13
Investment in and advances to unconsolidated joint ventures							$ 55,824	$ 50,857
Equity in net income of unconsolidated joint ventures							866	7,691	$ 13,767
Advances to Affiliate							3,800	4,000
Deferred Revenue							136	957
Related Party Transaction, Purchases from Related Party								6,500
Due to affiliates							0
Equity method investment, acquisition of partner's interest	$ 13,600		$ 2,600			$ 20,600
Proceeds from (Repayments of) Notes Payable	$ (4,110)						$ 4,110	15,636	5,171
General Partners' Contributed Capital				$ 4,000
Lots under Purchase Agreement Recorded							400
Deposits Assets							$ 5,100
Joint Venture Contribution [Member]
Related Party Transaction [Line Items]
Equity in net income of unconsolidated joint ventures		$ 1,600					183	100
Deferred Revenue							0	300	400
Joint Venture Asset Acquisition [Member]
Related Party Transaction [Line Items]
Deferred Revenue										$ 132
Cannery Land Sale [Member]
Related Party Transaction [Line Items]
Deferred Revenue							136	600
Deferred Profit Contra WIP Balance							500	700
Profit Participation [Member]
Related Party Transaction [Line Items]
Due from affiliates								200
Profit Participation							200
Builder Fees [Member]
Related Party Transaction [Line Items]
Due from affiliates							$ 143	100
Interest Income on Note to Joint Venture [Member]
Related Party Transaction [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							10.00%
Due from affiliates							$ 34	44
Revenue from related party							542
Board Affiliate [Member]
Related Party Transaction [Line Items]
Deposits Assets							$ 100
Lots Under Purchase Options Recorded							41
Purchase Options, Land							$ 10,000
10% Common Stock Affiliate [Member] | 394 Lot Development [Member]
Related Party Transaction [Line Items]
Deposits Assets							$ 600
Lots Under Purchase Options Recorded							92
Purchase Options, Land							$ 16,100
Purchased Lots Previously Under Purchase Options							30
10% Common Stock Affiliate [Member] | 418 Lot Development [Member]
Related Party Transaction [Line Items]
Deposits Assets							$ 300
Lots Under Purchase Options Recorded							418
Purchase Options, Land							$ 53,400
Gain on Joint Venture Closeout [Member] [Member]
Related Party Transaction [Line Items]
Equity in net income of unconsolidated joint ventures				300	$ 1,100
Consultant Stelmar [Member] | Monthly consulting fee [Member]
Related Party Transaction [Line Items]
Transaction amount							17
Accounts Payable, Related Parties							0
Consultant Stelmar [Member] | Monthly consulting fee - reduced [Member]
Related Party Transaction [Line Items]
Transaction amount							6
Consultant Davis [Member]
Related Party Transaction [Line Items]
Due from affiliates							471
Consultant Davis [Member] | Consulting Fee [Member]
Related Party Transaction [Line Items]
Transaction amount							5
Accounts Payable, Related Parties							0
TL Fab LP [Member] | Trade Payment [Member] | Wholly owned [Member]
Related Party Transaction [Line Items]
Transaction amount							600	300	100
Accounts Payable, Related Parties							11	33
TL Fab LP [Member] | Trade Payment [Member] | Unconsolidated Joint Ventures [Member]
Related Party Transaction [Line Items]
Transaction amount							900	600	800
Accounts Payable, Related Parties							$ 0	14
Director [Member]
Related Party Transaction [Line Items]
Equity Method Investments, Number | investment							3
Board Member and 10% Beneficial Owner [Member]
Related Party Transaction [Line Items]
Equity Method Investments, Number | investment							2
Related Party [Member]
Related Party Transaction [Line Items]
The percentage of ownership of common stock entities with investments in Company’s unconsolidated joint ventures hold							10.00%
Equity Method Investments, Number | investment							5
Investment in and advances to unconsolidated joint ventures							$ 34,500
Corporate Joint Venture [Member] | Construction-related Costs [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party							7,300	9,400	11,300
Due from affiliates							100	200
Corporate Joint Venture [Member] | Management Fees [Member]
Related Party Transaction [Line Items]
Due from affiliates							300	600
Revenue from related party							$ 4,945	$ 8,200	$ 12,400
Gain on Fair Value Remeasurement [Member]
Related Party Transaction [Line Items]
Equity in net income of unconsolidated joint ventures				$ 100	$ 500