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Condensed Financial Information of Parent Company (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | --- | ---
Assets |  |  |
Cash and due from banks | $ 18,794 | $ 12,579 |
Securities available-for-sale, at fair value | 341,935 | 310,612 |
Loans, net | 675,376 | 658,611 |
Premises and equipment, net | 10,735 | 9,587 |
Other assets | 24,474 | 21,144 |
Total assets | 1,287,387 | 1,319,301 | 1,188,035
Liabilities and Shareholders' Equity |  |  |
Accounts and drafts payable | 522,761 | 595,201 |
Other liabilities | 26,903 | 15,184 |
Total liabilities | 1,113,372 | 1,158,753 |
Total liabilities and shareholders' equity | 1,287,387 | 1,319,301 |
Parent [Member] |  |  |
Assets |  |  |
Cash and due from banks | 22,709 | 26,986 |
Short-term investments | 38,705 | 95,043 |
Securities available-for-sale, at fair value | 316,771 | 310,612 |
Loans, net | 156,935 | 173,854 |
Investments in subsidiary | 67,385 | 58,582 |
Premises and equipment, net | 10,436 | 9,305 |
Other assets | 106,247 | 93,582 |
Total assets | 719,188 | 767,964 |
Liabilities and Shareholders' Equity |  |  |
Accounts and drafts payable | 522,761 | 595,201 |
Other liabilities | 22,214 | 12,183 |
Total liabilities | 544,975 | 607,384 |
Total shareholders equity | 174,213 | 160,580 |
Total liabilities and shareholders' equity | $ 719,188 | $ 767,964 |

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