Note 18 - Commitments and Contingencies (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Note 18 - Commitments and Contingencies (Details) [Line Items]
Non-refundable Cash Deposits	$ 42,400,000	$ 42,400,000
Capitalized Preacquisition and Other Development and Construction Costs	7,800,000	7,800,000
Remaining Purchase Price of Land Purchase and Option Contracts	425,000,000	425,000,000
Number of Joint Ventures The Company Holds Membership Interest In	21	21
Number of Active Joint Ventures	7	7
Number of Inactive Joint Ventures	14	14
Number of Joint Ventures Having Project Specific Non-recourse Debt to the Company	1	1
Equity Method Investment Summarized Financial Information Non-recourse Debt	30,000,000	30,000,000		30,000,000
Outstanding Joint Venture Surety Bonds	400,000	400,000
Joint Venture Surety Bonds Cost to Complete	200,000	200,000
Outstanding Surety Bonds	468,800,000	468,800,000
Surety Bonds Cost to Complete	261,900,000	261,900,000
Mortgage Loans In Process	83,600,000	83,600,000
Mortgage Loans In Process, Interest Rate	4.00%	4.00%
Disposal Group, Including Discontinued Operation, Mortgage Loans	79,300,000	79,300,000
Mortgage Loans Committed to Sell to Investors	84,900,000	84,900,000
Mortgage Loan Repurchase Payments	10,600,000	200,000	800,000
Mortgage Loans on Real Estate, New Mortgage Loans	8,600,000,000
Mortgage Loan Loss Expense Provision		200,000	0
Mortgage Loan Repurchase Reserve	2,200,000	2,200,000
Number of Loans Repurchased		4	9
Insurance and Litigation Accruals	62,800,000	62,800,000		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	$ 30,000,000