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Restrictions On Cash (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Restrictions On Cash [Abstract] |  |
Daily average cash reserve | $ 3,819 | $ 1,732

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- Definition Daily Average Cash Reserve Requirements + References No definition available. + Details
Name: | cik0001275101_DailyAverageCashReserveRequirements
Namespace Prefix: | cik0001275101_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration