Related Party Transactions - Narrative (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transactions [Abstract]
Interest Income, Related Party	$ 0us-gaap_InterestIncomeRelatedParty	$ 8,000us-gaap_InterestIncomeRelatedParty	$ 12,000us-gaap_InterestIncomeRelatedParty

Amount of interest income earned from interest-bearing assets owed to the entity by related party.

No definition available.

Name:	us-gaap_InterestIncomeRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration