Note 16 - Commitments and Contingencies (Details Textual) $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($)
HomeAmerican [Member]
Letters of Credit Outstanding, Amount	$ 32.6
Option Contracts [Member]
Letters of Credit Outstanding, Amount	2.4
Earnest Money Deposits	$ 6.9
Right to Acquire Lots Under Options Contract	2,504
Surety Bonds, Outstanding, Amount	$ 179.3
Letters of Credit Outstanding, Amount	58.9
Estimated Cost Related to Bonds	53.8
Estimated Cost Related to Letters of Credit	$ 31.9