Note 18 - Commitments and Contingencies (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Note 18 - Commitments and Contingencies (Details) [Line Items]
Non-refundable Cash Deposits	$ 41,300,000
Capitalized Preacquisition and Other Development and Construction Costs	7,700,000
Remaining Purchase Price of Land Purchase and Option Contracts	439,200,000
Number of Joint Ventures The Company Holds Membership Interest In	21
Number of Active Joint Ventures	7
Number of Inactive Joint Ventures	14
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	100,000
Outstanding Surety Bonds	504,000,000
Surety Bonds Cost to Complete	289,600,000
Mortgage Loans In Process	98,200,000
Mortgage Loans In Process, Interest Rate	4.00%
Disposal Group, Including Discontinued Operation, Mortgage Loans	69,000,000
Mortgage Loans Committed to Sell to Investors	98,900,000
Aggregate Mortgage Loan Repurchase Payments	10,700,000
Mortgage Loans on Real Estate, New Mortgage Loans	8,800,000,000
Mortgage Loan Loss Expense Provision	400,000	0
Mortgage Loan Repurchase Reserve	2,200,000
Mortgage Loan Repurchase Payments	400,000	800,000
Number of Loans Repurchased	9	9
Insurance and Litigation Accruals	60,800,000		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