Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			2
Homebuilding revenues	$ 96,929	$ 78,836	$ 166,335	$ 121,139
Fee building revenues	47,181	30,028	102,798	72,965
Revenues	144,110	108,864	269,133	194,104
Income before income taxes	2,505	3,939	3,865	2,828
Total assets	619,610		619,610		$ 419,136
Homebuilding Segment [Member]
Segment Reporting Information [Line Items]
Homebuilding revenues	96,929	78,836	166,335	121,139
Income before income taxes	1,223	2,228	892	(906)
Total assets	605,358		605,358		393,095
Fee Building Segment [Member]
Segment Reporting Information [Line Items]
Fee building revenues	47,181	30,028	102,798	72,965
Income before income taxes	1,282	$ 1,711	2,973	$ 3,734
Total assets	$ 14,252		$ 14,252		$ 26,041