Note 19 - Subsequent Event (Details) - Merger with Ryland Group, Inc [Member] - Subsequent Event [Member]	Jul. 02, 2015
Note 19 - Subsequent Event (Details) [Line Items]
Business Combination, Conversion Ratio	5
Ryland Group, Inc [Member]
Note 19 - Subsequent Event (Details) [Line Items]
Business Combination, Reverse Conversion Ratio	1.0191

The shares of the surviving company for each share of existing company as per a merger agreement.

No definition available.

Name:	spf_BusinessCombinationReverseConversionRatio
Namespace Prefix:	spf_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration