Operating Segments Operating income including segment assets and expenditures (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jun. 30, 2012	Jun. 30, 2011
Properties
Operating revenue	$ 9,755
Operating expenses	5,238
Depreciation and amortizations.	1,612
Mortgage and loan interest	801
Interest income	0
Gain on land sale.	0
Segment operating income (loss)	2,104
Capital expenditures	431
Assets	166,902
Sales price	6,825
Cost of sales	7,313
Gain (loss) on sales	(488)
Operating revenue.		11,103
Operating expenses.		5,260
Depreciation amortization		1,713
Mortgage and loan interest.		2,260
Interest income.		0
Gain land sales		0
Segment operating income (loss).		1,870
Capital expenditures.		5
Assets.		177,298
Sales price.		67,397
Cost of sales.		75,274
Recognized prior deferred gain		0
Gain (loss) on sales.		(7,877)
Apartments
Operating revenue	21,227
Operating expenses	10,256
Depreciation and amortizations.	3,850
Mortgage and loan interest	12,254
Interest income	0
Gain on land sale.	0
Segment operating income (loss)	(5,133)
Capital expenditures	37
Assets	561,711
Sales price	25,985
Cost of sales	23,946
Gain (loss) on sales	2,039
Operating revenue.		18,025
Operating expenses.		9,359
Depreciation amortization		3,330
Mortgage and loan interest.		7,979
Interest income.		0
Gain land sales		0
Segment operating income (loss).		(2,643)
Capital expenditures.		82
Assets.		555,522
Sales price.		0
Cost of sales.		0
Recognized prior deferred gain		963
Gain (loss) on sales.		963
Hotels
Operating revenue	0
Operating expenses	0
Depreciation and amortizations.	0
Mortgage and loan interest	0
Interest income	0
Gain on land sale.	0
Segment operating income (loss)	0
Capital expenditures	0
Assets	0
Sales price	3,369
Cost of sales	252
Gain (loss) on sales	3,117
Operating revenue.		0
Operating expenses.		0
Depreciation amortization		0
Mortgage and loan interest.		0
Interest income.		0
Gain land sales		0
Segment operating income (loss).		0
Capital expenditures.		0
Assets.		0
Sales price.		2,525
Cost of sales.		(1,114)
Recognized prior deferred gain		0
Gain (loss) on sales.		3,639
Land
Operating revenue	0
Operating expenses	279
Depreciation and amortizations.	0
Mortgage and loan interest	1,573
Interest income	0
Gain on land sale.	4,738
Segment operating income (loss)	2,886
Capital expenditures	0
Assets	231,497
Sales price	12,650
Cost of sales	7,912
Gain (loss) on sales	4,738
Operating revenue.		200
Operating expenses.		551
Depreciation amortization		0
Mortgage and loan interest.		2,786
Interest income.		0
Gain land sales		14,029
Segment operating income (loss).		10,892
Capital expenditures.		8,924
Assets.		337,317
Sales price.		60,377
Cost of sales.		49,338
Recognized prior deferred gain		2,990
Gain (loss) on sales.		14,029
OthersMember
Operating revenue	34
Operating expenses	(99)
Depreciation and amortizations.	(69)
Mortgage and loan interest	2,013
Interest income	4,723
Gain on land sale.	0
Segment operating income (loss)	2,912
Capital expenditures	0
Assets	0
Sales price	0
Cost of sales	0
Gain (loss) on sales	0
Operating revenue.		(22)
Operating expenses.		237
Depreciation amortization		(85)
Mortgage and loan interest.		2,414
Interest income.		1,203
Gain land sales		14,029
Segment operating income (loss).		(1,385)
Capital expenditures.		16
Assets.		0
Sales price.		0
Cost of sales.		0
Recognized prior deferred gain		10,954
Gain (loss) on sales.		10,954
TotalMember
Operating revenue	31,016
Operating expenses	15,674
Depreciation and amortizations.	5,393
Mortgage and loan interest	16,641
Interest income	4,723
Gain on land sale.	4,738
Segment operating income (loss)	2,769
Capital expenditures	468
Assets	960,110
Sales price	48,829
Cost of sales	39,423
Gain (loss) on sales	9,406
Operating revenue.		29,306
Operating expenses.		15,407
Depreciation amortization		4,958
Mortgage and loan interest.		15,439
Interest income.		1,203
Segment operating income (loss).		8,734
Capital expenditures.		9,027
Assets.		1,070,137
Sales price.		130,299
Cost of sales.		123,498
Recognized prior deferred gain		14,907
Gain (loss) on sales.		$ 21,708