Deposits (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Deposits [Line Items]
Checking and money market accounts	$ 1,236	$ 1,125	$ 1,368
Savings accounts	90us-gaap_InterestExpenseSavingsDeposits	90us-gaap_InterestExpenseSavingsDeposits	116us-gaap_InterestExpenseSavingsDeposits
Certificates of deposit	3,957	4,698	6,685
Totals	$ 5,283us-gaap_InterestExpenseDeposits	$ 5,913us-gaap_InterestExpenseDeposits	$ 8,169us-gaap_InterestExpenseDeposits

Interest expense incurred on all money market deposits.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.6)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 6

-Article 9

Name:	us-gaap_InterestExpenseMoneyMarketDeposits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration