Loans and the Allowance for Loan Losses, Troubled Debt Restructuring (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013 Contract	Mar. 31, 2012 Contract
Financing Receivable, Modifications [Line Items]
Number of Modifications	2	6
Recorded Investment Prior to Modification	$ 598	$ 1,321
Recorded Investment After Modification	598	1,064
Current Investment	598	1,005
Restructurings that Subsequently Defaulted [Abstract]
Recorded Investment in Defaulting Loans		531
Residential 1-4 Family [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications	1	1
Recorded Investment Prior to Modification	391	93
Recorded Investment After Modification	391	60
Current Investment	391	57
Restructurings that Subsequently Defaulted [Abstract]
Recorded Investment in Defaulting Loans		57
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications	1	1
Recorded Investment Prior to Modification	207	539
Recorded Investment After Modification	207	506
Current Investment	207	474
Restructurings that Subsequently Defaulted [Abstract]
Recorded Investment in Defaulting Loans	1,855
Second Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications		4
Recorded Investment Prior to Modification		689
Recorded Investment After Modification		498
Current Investment		474
Restructurings that Subsequently Defaulted [Abstract]
Recorded Investment in Defaulting Loans		474
Total Mortgage Loans on Real Estate [Member]
Restructurings that Subsequently Defaulted [Abstract]
Recorded Investment in Defaulting Loans		$ 531