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Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified | 0 Months Ended |  | 0 Months Ended |  |  |  |  |  |  |  |  |
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Jan. 02, 2012 | Mar. 01, 2013 | Mar. 06, 2013 F&M Bank [Member] | Sep. 12, 2012 F&M Bank [Member] | Dec. 31, 2012 F&M Bank [Member] | Mar. 14, 2012 F&M Bank [Member] | Dec. 31, 2011 F&M Bank [Member] | Dec. 31, 2012 Minimum [Member] | Mar. 06, 2013 Minimum [Member] F&M Bank [Member] | Mar. 14, 2012 Minimum [Member] F&M Bank [Member] | Dec. 31, 2012 Maximum [Member] | Mar. 06, 2013 Maximum [Member] F&M Bank [Member] | Mar. 14, 2012 Maximum [Member] F&M Bank [Member]
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Options issued to purchase | 18,750 |  |  |  |  |  |  |  |  |  |  |  |
Price per share | $ 0.64 |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operation, Sale Price |  | $ 1.5 |  |  |  |  |  |  |  |  |  |  |
Borrowing base |  |  | 21.5 | 23.0 | 21.5 | 20.0 |  |  |  |  |  |  |
Decreased borrowing base |  |  | 20.50 | 21.50 |  |  |  |  |  |  |  |  |
Rate above prime |  |  |  |  |  |  |  |  | 0.25% | 0.25% |  |  |
Interest rate per annum |  |  |  |  | 5.25% |  |  | 5.50% |  |  | 8.25% | 5.25% | 5.25%
Maximum line of credit |  |  | 40 |  | 40 |  |  |  |  |  |  |  |
Loans and letters of credit amount outstanding |  |  | $ 9.1 |  | $ 10.1 |  | $ 11.5 |  |  |  |  |  |

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