| 
           CONSOLIDATED STATEMENT OF EQUITY (USD $) 
        In Thousands  | 
        
           Total 
         | 
        
           Preferred Stock [Member] 
         | 
        
           Common Stock [Member] 
         | 
        
           Additional Paid In Capital [Member] 
         | 
        
           Retained Earnings [Member] 
         | 
        
           Accumulated Other Comprehensive Income [Member] 
         | 
        
           Noncontrolling Interest [Member] 
         | 
      
|---|---|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2012 | $ 233,257 | $ 39,958 | $ 6 | $ 93,505 | $ 92,492 | $ 7,296 | $ 0 | 
| Dividends paid | (12) | 0 | 0 | 0 | (12) | 0 | 0 | 
| Preferred dividends paid | (100) | 0 | 0 | 0 | (100) | 0 | 0 | 
| Exercise stock options and warrants, including tax benefit | 259 | 0 | 0 | 259 | 0 | 0 | 0 | 
| Issuance of 600,000 shares upon conversion of subordinated mandatorily convertible debentures | 15,000 | 0 | 1 | 14,999 | 0 | 0 | 0 | 
| Stock-based compensation expense | 259 | 0 | 0 | 259 | 0 | 0 | 0 | 
| Other comprehensive income (loss) | (367) | 0 | 0 | 0 | 0 | (367) | 0 | 
| Net income | 9,251 | 0 | 0 | 0 | 9,251 | 0 | 0 | 
| Ending Balance at Mar. 31, 2013 | 257,547 | 39,958 | 7 | 109,022 | 101,631 | 6,929 | 0 | 
| Beginning Balance at Dec. 31, 2013 | 297,192 | 39,958 | 7 | 123,325 | 130,011 | 3,891 | 0 | 
| Dividends paid | (1,129) | 0 | 0 | 0 | (1,129) | 0 | 0 | 
| Preferred dividends paid | (100) | 0 | 0 | 0 | (100) | 0 | 0 | 
| Exercise stock options and warrants, including tax benefit | 2,874 | 0 | 1 | 2,873 | 0 | 0 | 0 | 
| Stock-based compensation expense | 1,020 | 0 | 0 | 1,020 | 0 | 0 | 0 | 
| Issue 250 shares of REIT preferred stock | 250 | 0 | 0 | 0 | 0 | 0 | 250 | 
| Other comprehensive income (loss) | 418 | 0 | 0 | 0 | 0 | 418 | 0 | 
| Net income | 11,758 | 0 | 0 | 0 | 11,756 | 0 | 2 | 
| Ending Balance at Mar. 31, 2014 | $ 312,283 | $ 39,958 | $ 8 | $ 127,218 | $ 140,538 | $ 4,309 | $ 252 | 
| X | ||||||||||
| 
             
- Definition 
          Value of preferred stock issued during the period. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- 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 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Value of stock issued as a result of the exercise of stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  |