| 
           CONSOLIDATED STATEMENTS OF CHANGES IN SHAREOWNERS' EQUITY (Unaudited) (USD $) 
        In Thousands, except Share data, unless otherwise specified  | 
        
           Total 
         | 
        
           Common Stock 
         | 
        
           Additional Paid-In Capital 
         | 
        
           Retained Earnings 
         | 
        
           Accumulated Other Comprehensive Loss, Net of Taxes 
         | 
      
|---|---|---|---|---|---|
| Balance at Dec. 31, 2011 | $ 251,942 | $ 172 | $ 37,838 | $ 237,461 | $ (23,529) | 
| Balance, Shares at Dec. 31, 2011 | 17,160,274 | ||||
| Changes in Stockholders' Equity | |||||
| Net Income | (2,888) | (2,888) | |||
| Other Comprehensive Loss, net of tax | (454) | (454) | |||
| Stock Performance Plan Compensation | 87 | 87 | |||
| Issuance of Common Stock | 335 | 335 | |||
| Issuance of Common Stock, Shares | 37,605 | ||||
| Balance at Jun. 30, 2012 | 249,022 | 172 | 38,260 | 234,573 | (23,983) | 
| Balance, Shares at Jun. 30, 2012 | 17,197,879 | ||||
| Balance at Dec. 31, 2012 | 246,889 | 172 | 38,707 | 237,569 | (29,559) | 
| Balance, Shares at Dec. 31, 2012 | 17,232,380 | ||||
| Changes in Stockholders' Equity | |||||
| Net Income | 1,682 | 1,682 | |||
| Other Comprehensive Loss, net of tax | (786) | (786) | |||
| Stock Performance Plan Compensation | 643 | 643 | |||
| Issuance of Common Stock | 861 | 1 | 860 | ||
| Issuance of Common Stock, Shares | 103,889 | ||||
| Balance at Jun. 30, 2013 | $ 249,289 | $ 173 | $ 40,210 | $ 239,251 | $ (30,345) | 
| Balance, Shares at Jun. 30, 2013 | 17,336,269 | 
| X | ||||||||||
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- Definition 
          Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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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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- Definition 
          The change in other comprehensive income during the reporting period, net of tax, for an item that is not separately disclosed. No definition available. 
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- Definition 
          The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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