Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals)	Sep. 30, 2015	Aug. 31, 2015	Dec. 31, 2014	Sep. 30, 2014
7% Senior Notes [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate		7.00%
7% Senior Notes [Member] | Homebuilding [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	7.00%		7.00%
10¾% Senior Notes [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	10.75%
10¾% Senior Notes [Member] | Homebuilding [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	10.75%		10.75%
8⅜% Senior Notes [Member] | Homebuilding [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	8.375%		8.375%
8⅜% Senior Notes [Member] | Homebuilding [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	8.375%		8.375%
6¼% Senior Notes [Member] | Homebuilding [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	6.25%		6.25%
5⅞% Senior Notes [Member] | Homebuilding [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	5.875%		5.875%
1¼% Convertible Senior Notes Due August 2032 [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	1.25%			1.25%
1¼% Convertible Senior Notes Due August 2032 [Member] | Homebuilding [Member]
Note 14 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	1.25%		1.25%