Cash and Cash Equivalents (Details Textual) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Cash and Cash Equivalents (Textual) [Abstract]
Bank balances	$ 5.7	$ 3.3
Cash and cash equivalents original maturity dates	three months or less
Cash equivalents maximum maturity period	3 months

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