Note 3 - Segment Reporting (Details Textual) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019 USD ($)
Other Segments [Member]
Number of Reportable Segments	1
Homebuilding Segment [Member]
Estimated Increase (Decrease) in Prior Period Pretax Income Using New Cost Allocation Method in Homebuilding Segment		$ (2.7)
Estimated Increase (Decrease) in Prior Period Pretax Income Using New Expense Allocation Method		(3.0)
Financial Services Segment [Member]
Estimated Increase (Decrease) in Prior Period Pretax Income Using New Cost Allocation Method in Financial Services Segment		(0.4)
Corporate Segment [Member]
Estimated Increase (Decrease) in Prior Period Pretax Income Using New Cost Allocation Method in Homebuilding Segment		2.7
Estimated Increase (Decrease) in Prior Period Pretax Income Using New Cost Allocation Method in Financial Services Segment		0.4
Estimated Increase (Decrease) in Prior Period Pretax Income Using New Expense Allocation Method		$ 3.0

The estimated impact to pretax income for the prior period if the cost allocation methodology used in the current period for the financial services segment had also been used in the prior period.

No definition available.

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- Definition

The estimated impact to pretax income for the prior period if the cost allocation methodology used in the current period for the homebuilding segment had also been used in the period period.

+ References

No definition available.

+ Details

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- Definition

The estimated amount of the impact to the prior period pretax income if the current method for allocating expenses was used in the prior period.

+ References

No definition available.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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