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Parent Company Only Financial Statements Condensed statements of income (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Condensed Financial Statements, Captions [Line Items] | |||||||||||
| Income before income taxes | $ 5,626 | $ 5,851 | $ 5,557 | $ 5,401 | $ 5,162 | $ 4,250 | $ 4,011 | $ 4,478 | $ 22,435 | $ 17,901 | $ 13,283 |
| Income tax benefit | (2,117) | (2,204) | (2,078) | (2,011) | (1,892) | (1,571) | (1,433) | (1,633) | (8,410) | (6,529) | (4,522) |
| Net income | 3,509 | 3,647 | 3,479 | 3,390 | 3,270 | 2,679 | 2,578 | 2,845 | 14,025 | 11,372 | 8,761 |
| Comprehensive income | 15,421 | 16,586 | 6,231 | ||||||||
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Parent Company [Member]
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| Condensed Financial Statements, Captions [Line Items] | |||||||||||
| Dividends from subsidiaries | 1,438 | 938 | 6,744 | ||||||||
| Other income | 64 | 40 | 8 | ||||||||
| Total income | 1,502 | 978 | 6,752 | ||||||||
| Operating expenses | 2,519 | 2,414 | 2,728 | ||||||||
| Income before income taxes | (1,017) | (1,436) | 4,024 | ||||||||
| Income tax benefit | 990 | 1,005 | 1,062 | ||||||||
| Income (loss) before equity in undistributed earnings of subsidiaries | (27) | (431) | 5,086 | ||||||||
| Equity in undistributed earnings of subsidiaries | 14,052 | 11,803 | 3,675 | ||||||||
| Net income | 14,025 | 11,372 | 8,761 | ||||||||
| Comprehensive income | $ 15,421 | $ 16,586 | $ 6,231 | ||||||||
| X | ||||||||||
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- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. No definition available.
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| X | ||||||||||
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- Definition
This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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| X | ||||||||||
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- Definition
Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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