Note 3 - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Homebuilding [Member] | West [Member]
Home and land sale revenues	$ 270,031	$ 217,701	$ 461,406	$ 394,518
Homebuilding [Member] | Mountain [Member]
Home and land sale revenues	190,334	156,893	328,158	280,914
Homebuilding [Member] | East [Member]
Home and land sale revenues	111,146	87,114	178,691	164,195
Homebuilding [Member]
Home and land sale revenues	571,511	461,708	968,255	839,627
Financial Services [Member] | Mortgage Operations [Member]
Financial services revenues	10,702	7,104	17,572	13,753
Financial Services [Member] | Other Financial Services [Member]
Financial services revenues	5,121	4,316	9,268	8,258
Financial Services [Member]
Financial services revenues	$ 15,823	$ 11,420	$ 26,840	$ 22,011