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Provision for Impairment Losses (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Provision for Impairment Losses Details
Prior period impairment recorded as an additional loss in the commercial portfolio	$ 9,600,000fil_PriorPeriodImpairmentRecordedAsAnAdditionalLossInTheCommercialPortfolio
Prior period impairment recorded as an additional loss in the land portfolio	7,500,000fil_PriorPeriodImpairmentRecordedAsAnAdditionalLossInTheLandPortfolio
Provision for impairment of notes receivables	$ 1,900,000fil_ProvisionForImpairmentOfNotesReceivables

X

- Definition

The aggregate amount of write-downs for impairments recognized during the period

+ References

No definition available.

+ Details

Name:	fil_PriorPeriodImpairmentRecordedAsAnAdditionalLossInTheCommercialPortfolio
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The aggregate amount of write-downs for impairments recognized during the period

+ References

No definition available.

+ Details

Name:	fil_PriorPeriodImpairmentRecordedAsAnAdditionalLossInTheLandPortfolio
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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

X

- Definition

The value of Provision on impairment of notes receivable and real estate assets during the period.

+ References

No definition available.

+ Details

Name:	fil_ProvisionForImpairmentOfNotesReceivables
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration