This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2011
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Financial liabilities measured at fair value	$ 0
Securities available for sale:	147,096	129,866
Other real estate owned	6,362	8,195	10,076
State, county, and municipal securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	36,004	39,864
Mortgage-backed securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	101,139	80,248
Corporate securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	9,953	9,754
Recurring Basis: \| Assets Measured at Fair Value
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	147,096	129,866
Recurring Basis: \| Assets Measured at Fair Value \| State, county, and municipal securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	36,004	39,864
Recurring Basis: \| Assets Measured at Fair Value \| Mortgage-backed securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	101,139	80,248
Recurring Basis: \| Assets Measured at Fair Value \| Corporate securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	9,953	9,754
Recurring Basis: \| Significant Other Observable Inputs (Level 2)
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	147,096	129,866
Recurring Basis: \| Significant Other Observable Inputs (Level 2) \| State, county, and municipal securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	36,004	39,864
Recurring Basis: \| Significant Other Observable Inputs (Level 2) \| Mortgage-backed securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	101,139	80,248
Recurring Basis: \| Significant Other Observable Inputs (Level 2) \| Corporate securities
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Securities available for sale:	9,953	9,754
Nonrecurring Basis: \| Assets Measured at Fair Value
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Other real estate owned	6,362	8,195
Collateral dependent impaired loans and Other real estate owned	19,570	25,917
Nonrecurring Basis: \| Assets Measured at Fair Value \| Commercial Real Estate
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Collateral Dependent Impaired loans:	12,848	16,929
Nonrecurring Basis: \| Assets Measured at Fair Value \| Single-Family Residential
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Collateral Dependent Impaired loans:	360	515
Nonrecurring Basis: \| Assets Measured at Fair Value \| Construction and Development
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Collateral Dependent Impaired loans:		278
Nonrecurring Basis: \| Significant Unobservable Inputs (Level 3)
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Other real estate owned	6,362	8,195
Collateral dependent impaired loans and Other real estate owned	19,570	25,917
Nonrecurring Basis: \| Significant Unobservable Inputs (Level 3) \| Commercial Real Estate
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Collateral Dependent Impaired loans:	12,848	16,929
Nonrecurring Basis: \| Significant Unobservable Inputs (Level 3) \| Single-Family Residential
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Collateral Dependent Impaired loans:	360	515
Nonrecurring Basis: \| Significant Unobservable Inputs (Level 3) \| Construction and Development
Financial assets measured at fair value on a recurring and nonrecurring basis and the change in fair value for those specific financial instruments in which fair value has been elected
Collateral Dependent Impaired loans:		$ 278