Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Homebuilding [Member] | 7% Senior Notes [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	7.00%	7.00%
Homebuilding [Member] | 10¾% Senior Notes [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	10.75%	10.75%
Homebuilding [Member] | 8⅜% Senior Notes [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	8.375%	8.375%
Homebuilding [Member] | 8⅜% Senior Notes [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	8.375%	8.375%
Homebuilding [Member] | 6¼% Senior Notes [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	6.25%	6.25%
Homebuilding [Member] | 5⅞% Senior Notes [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	5.875%	5.875%
Homebuilding [Member] | 1¼% Convertible Senior Notes Due August 2032 [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	1.25%	1.25%
1¼% Convertible Senior Notes Due August 2032 [Member]
Note 13 - Senior Notes Payable (Details) - Senior Notes Payable (Parentheticals) [Line Items]
Interest rate	1.25%		1.25%