Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Warranty Activity

Warranty activity, included in accrued expenses in our consolidated balance sheets, for 2017, 2016 and 2015 consists of the following (in thousands):

	2017			2016			2015
Beginning balance	$	1,210		$	474		$	460
Additions	1,936			1,399			667
Charges	(1,063		)	(663		)	(653		)
Ending balance	$	2,083		$	1,210		$	474

Schedule of Annual Minimum Operating Lease Payments

The approximate annual minimum lease payments over the next five years under operating leases as of December 31, 2017 are (in thousands):

2018	$	877
2019	895
2020	934
2021	763
2022 and thereafter	1,025
	$	4,494

Schedule of Expected Land and Lot Purchase Payments Under Option Agreements [Table Text Block]

If each option contract in place as of December 31, 2017 was exercised, expected purchase payments would be as follows (in thousands):

	Total
2018	$	137,548
2019	47,588
2020	16,092
2021	5,765
	$	206,993