The aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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The current period recognition due to accretion of the excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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- Definition

The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Accounting for Certain Loans Acquired in a Purchase (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2013	Dec. 31, 2012
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	$ 55,966			$ 55,966	$ 65,600
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning balance	4,371	9,774	9,774	5,142
Accretions	(412)	(726)	(726)	(1,183)
Ending balance	3,959	9,048	9,048	3,959
Commercial and industrial loans
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	5,408			5,408	8,542
Agriculture production financing and other loans to farmers
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	872			872	1,127
Real estate loans - Construction
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired					58
Real estate loans - Commercial and farm land
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	21,129			21,129	24,259
Real estate loans - Residential
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	10,415			10,415	12,118
Real estate loans - Home equity
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	17,509			17,509	18,805
Individuals' loans for household and other personal expenditures
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	464			464	691
Other Loans
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Carrying amount of loans acquired	$ 169			$ 169