Cash Concentration Risk (Details) (USD $)	Dec. 31, 2012 bank account
Risks and Uncertainties [Abstract]
Number of cash accounts maintained by Partnership	4
Number of banks	2
Uninsured portion of cash	$ 1,595,391

The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

No definition available.

Name:	us-gaap_CashUninsuredAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant