Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Accrued bonuses	$ 1,120	$ 39
Accrued payroll	101	49
Stock-based compensation	291	125
Federal net operating loss carryover	40,800	55,622
State net operating loss carryover	1,147	1,161
Basis in partnerships	22,922	24,773
Warranty accrual	444	166
Inventory (Section 263A)	945	0
Accrued job costs	503	0
Reserve to complete	345	0
Alternative minimum tax credit carryover	158	0
Other	126	40
Deferred tax assets, gross	68,902	81,975
Valuation allowance	(1,147)	(1,161)	$ (1,161)
Deferred tax assets, net	67,755	80,814
Deferred tax liabilities:
Prepaid insurance	(43)	(34)
Noncontrolling interests impact of M-1s	0	(117)
Other	(114)	0
Deferred tax liabilities, net	$ (157)	$ (151)