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Notes and interest receivable from Unified Housing Foundation Inc, (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012
Notes and interest receivable from Unified Housing | $ 27,000,000
Recognized interest income relatd to the notes receivable | 2,500,000
Repayment of notes by Unified Housing | $ 3,000,000

X
- Definition Total amount of notes and interest receivable due from related parties as of the balance sheet date. + References No definition available. + Details
Name: | fil_NotesAndInterestReceivableFromUnifiedHousing
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total amount of interest income recognized from the related party notes receivable as of the balance sheet date. + References No definition available. + Details
Name: | fil_RecognizedInterestIncomeRelatdToTheNotesReceivable
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount received from a related party to pay off a note receivable and accrued interest during the current period. + References No definition available. + Details
Name: | fil_RepaymentOfNotesByUnifiedHousing
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration