Assets fair value computation (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Assets fair value computation
Land with a carrying amount	$ 2,355,768fil_LandWithACarryingAmount	$ 5,029,254fil_LandWithACarryingAmount
Land Fair value	849,468fil_LandFairValue	2,699,175fil_LandFairValue
Land Impairment charge	1,506,300fil_LandImpairmentCharge	2,330,079fil_LandImpairmentCharge
Commercial building carrying amount	35,794,331fil_CommercialBuildingCarryingAmount	12,060,247fil_CommercialBuildingCarryingAmount
Commercial building Fair value	26,194,331fil_CommercialBuildingFairValue	9,660,247fil_CommercialBuildingFairValue
Commercial building Impairment charge	$ 9,600,000fil_CommercialBuildingImpairmentCharge	$ 2,400,000fil_CommercialBuildingImpairmentCharge

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Namespace Prefix:	fil_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount before accumulated depletion of real estate held for productive use, Commercial in nature

No definition available.

Name:	fil_CommercialBuildingCarryingAmount
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Fair value of real estate held for productive use, commercial in nature

No definition available.

Name:	fil_CommercialBuildingFairValue
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Impairment charge of real estate held for productive use, commercial in nature

No definition available.

Name:	fil_CommercialBuildingImpairmentCharge
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount after accumulated depletion of real estate held for productive use,

No definition available.

Impairment charge of real estate held for productive use,

No definition available.

Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

No definition available.

Name:	fil_LandWithACarryingAmount
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant