Note 18 - Commitments and Contingencies (Details) (USD $)	3 Months Ended		120 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Note 18 - Commitments and Contingencies (Details) [Line Items]
Non-refundable Cash Deposits	$ 36,100,000
Capitalized Preacquisition and Other Development and Construction Costs	3,800,000
Remaining Purchase Price of Land Purchase and Option Contracts	379,100,000
Number of Joint Ventures The Company Holds Membership Interest In	21
Number of Active Joint Ventures	9
Number of Inactive Joint Ventures	12
Number of Joint Ventures Having Project Specific Non-recourse Debt to the Company	1
Equity Method Investment Summarized Financial Information Non-recourse Debt	30,000,000		30,000,000
Outstanding Joint Venture Surety Bonds	2,700,000
Joint Venture Surety Bonds Cost to Complete	200,000
Outstanding Surety Bonds	459,000,000
Surety Bonds Cost to Complete	277,500,000
Mortgage Loans In Process	77,100,000
Mortgage Loans In Process, Interest Rate	4.30%
Loans Held-for-sale, Mortgages	70,400,000
Mortgage Loans Committed to Sell to Investors	78,100,000
Mortgage Loan Repurchase Payments	200,000	600,000	10,600,000
Mortgage Loans on Real Estate, New Mortgage Loans			8,300,000,000
Mortgage Loan Loss Expense Provision	200,000	600,000
Mortgage Loan Repurchase Reserve	2,200,000
Number of Loans Repurchased	3	8
Insurance and Litigation Accruals	63,600,000		64,800,000
Matures June, 2014 [Member]
Note 18 - Commitments and Contingencies (Details) [Line Items]
Equity Method Investment Summarized Financial Information Non-recourse Debt	$ 30,000,000