Summary of Significant Accounting Polices (Concentration of Credit Risk) (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Summary Of Significant Accounting Polices Concentration Of Credit Risk Narrative Details
FDIC current limits on bank accounts per banking institution	$ 250,000us-gaap_CashFDICInsuredAmount	$ 250,000us-gaap_CashFDICInsuredAmount
Company bank balances in these bank accounts exceeding the insured amount	$ 13,274,000us-gaap_CashUninsuredAmount	$ 13,274,000us-gaap_CashUninsuredAmount

The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

No definition available.

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