Loans and Allowance for Loan Losses - Impaired Loans With Specific Reserves and Recorded Balance of Related Loans (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Loans and Leases Receivable, Allowance [Abstract]
Allowance for loss on impaired loans	$ 245,811	$ 39,938	$ 0
Recorded balance of impaired loans	$ 2,189,199	$ 567,802	$ 4,500,000

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524

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