| 
           PARENT COMPANY FINANCIAL INFORMATION (Tables)
  
         | 
        12 Months Ended | 
      
      
        | 
           Dec. 31, 2012 
         | 
      
      
        | Condensed Financial Information Of Parent Company Only Disclosure [Abstract] | 
         
 | 
      
      
        | Balance Sheet | 
        
 BALANCE SHEETS DECEMBER 31, 2012 AND 2011 
(In Thousands) 
  
|   | 
  | 
2012 | 
  | 
  | 
2011 | 
  | 
 
| ASSETS | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Cash and due from banks | 
  | 
$ | 
3,264 | 
  | 
  | 
$ | 
2,908 | 
  | 
 
| Investment in subsidiary | 
  | 
  | 
265,229 | 
  | 
  | 
  | 
223,753 | 
  | 
 
| Other assets | 
  | 
  | 
18 | 
  | 
  | 
  | 
293 | 
  | 
 
| Total assets | 
  | 
$ | 
268,511 | 
  | 
  | 
$ | 
226,954 | 
  | 
 
|   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| LIABILITIES AND STOCKHOLDERS' EQUITY | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Liabilities: | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Other borrowings | 
  | 
$ | 
19,917 | 
  | 
  | 
$ | 
- | 
  | 
 
| Subordinated debentures | 
  | 
  | 
15,050 | 
  | 
  | 
  | 
30,514 | 
  | 
 
| Other liabilities | 
  | 
  | 
287 | 
  | 
  | 
  | 
148 | 
  | 
 
| Total liabilities | 
  | 
  | 
35,254 | 
  | 
  | 
  | 
30,662 | 
  | 
 
| Stockholders' equity: | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Preferred stock, Series A Senior Non-Cumulative Perpetual, par value $.001 (liquidation preference $1,000), net of discount; 40,000 shares authorized, 40,000 shares issued and outstanding at December 31, 2012 and no shares authorized, issued and outstanding at December 31, 2011 | 
  | 
  | 
39,958 | 
  | 
  | 
  | 
39,958 | 
  | 
 
| Common stock, par value $.001 per share; 50,000,000 shares authorized; 6,268,812 shares issued and outstanding at December 31, 2012 and 5,932,182 shares issued and outstanding at December 31, 2011 | 
  | 
  | 
6 | 
  | 
  | 
  | 
6 | 
  | 
 
| Additional paid-in capital | 
  | 
  | 
93,505 | 
  | 
  | 
  | 
87,805 | 
  | 
 
| Retained earnings | 
  | 
  | 
92,492 | 
  | 
  | 
  | 
61,581 | 
  | 
 
| Accumulated other comprehensive income | 
  | 
  | 
7,296 | 
  | 
  | 
  | 
6,942 | 
  | 
 
| Total stockholders' equity | 
  | 
  | 
233,257 | 
  | 
  | 
  | 
196,292 | 
  | 
 
| Total liabilites and stockholders' equity | 
  | 
$ | 
268,511 | 
  | 
  | 
$ | 
226,954 | 
  | 
 
 
 | 
      
      
        | Statements Of Income | 
        
 STATEMENTS OF INCOME 
FOR THE YEARS ENDED DECEMBER 31, 
(In Thousands) 
  
|   | 
  | 
2012 | 
  | 
  | 
2011 | 
  | 
  | 
2010 | 
  | 
 
| Income: | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Dividends received from subsidiary | 
  | 
$ | 
- | 
  | 
  | 
$ | 
800 | 
  | 
  | 
$ | 
1,230 | 
  | 
 
| Other income | 
  | 
  | 
41 | 
  | 
  | 
  | 
43 | 
  | 
  | 
  | 
42 | 
  | 
 
| Total income | 
  | 
  | 
41 | 
  | 
  | 
  | 
843 | 
  | 
  | 
  | 
1,272 | 
  | 
 
| Interest on borrowings | 
  | 
  | 
2,213 | 
  | 
  | 
  | 
2,345 | 
  | 
  | 
  | 
2,236 | 
  | 
 
| Other operating expenses | 
  | 
  | 
325 | 
  | 
  | 
  | 
291 | 
  | 
  | 
  | 
295 | 
  | 
 
| Total expenses | 
  | 
  | 
2,538 | 
  | 
  | 
  | 
2,636 | 
  | 
  | 
  | 
2,531 | 
  | 
 
| undistributed earnings of subsidiary | 
  | 
  | 
(2,497 | 
) | 
  | 
  | 
(1,793 | 
) | 
  | 
  | 
(1,259 | 
) | 
 
| Income tax benefit | 
  | 
  | 
(944 | 
) | 
  | 
  | 
(976 | 
) | 
  | 
  | 
(924 | 
) | 
 
| earnings of subsidiary | 
  | 
  | 
(1,553 | 
) | 
  | 
  | 
(817 | 
) | 
  | 
  | 
(335 | 
) | 
 
| Equity in undistributed earnings of subsidiary | 
  | 
  | 
35,998 | 
  | 
  | 
  | 
24,255 | 
  | 
  | 
  | 
17,713 | 
  | 
 
| Net income | 
  | 
  | 
34,445 | 
  | 
  | 
  | 
23,438 | 
  | 
  | 
  | 
17,378 | 
  | 
 
| Dividends on preferred stock | 
  | 
  | 
400 | 
  | 
  | 
  | 
200 | 
  | 
  | 
  | 
- | 
  | 
 
| Net income available to common stockholders | 
  | 
$ | 
34,045 | 
  | 
  | 
$ | 
23,238 | 
  | 
  | 
$ | 
17,378 | 
  | 
 
 
 | 
      
      
        | Statement Of Cash Flows | 
        
 STATEMENT OF CASH FLOWS 
FOR THE YEARS ENDED DECEMBER 31, 
(In Thousands) 
  
|   | 
  | 
2012 | 
  | 
  | 
2011 | 
  | 
  | 
2010 | 
  | 
 
| Operating activities | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Net income | 
  | 
$ | 
34,445 | 
  | 
  | 
$ | 
23,438 | 
  | 
  | 
$ | 
17,378 | 
  | 
 
| Adjustments to reconcile net income to net cash used in operating activities: | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Other | 
  | 
  | 
878 | 
  | 
  | 
  | 
(50 | 
) | 
  | 
  | 
241 | 
  | 
 
| Equity in undistributed earnings of subsidiary | 
  | 
  | 
(35,998 | 
) | 
  | 
  | 
(24,255 | 
) | 
  | 
  | 
(17,713 | 
) | 
 
| Net cash (used in) provided by operating activities | 
  | 
  | 
(675 | 
) | 
  | 
  | 
(867 | 
) | 
  | 
  | 
(94 | 
) | 
 
| Investing activities | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Investment in subsidiary | 
  | 
  | 
- | 
  | 
  | 
  | 
(46,200 | 
) | 
  | 
  | 
(15,000 | 
) | 
 
| Net cash used in investing activities | 
  | 
  | 
- | 
  | 
  | 
  | 
(46,200 | 
) | 
  | 
  | 
(15,000 | 
) | 
 
| Financing activities | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Proceeds from other borrowings | 
  | 
  | 
19,917 | 
  | 
  | 
  | 
- | 
  | 
  | 
  | 
- | 
  | 
 
| Repayment of subordinated debentures | 
  | 
  | 
(15,464 | 
) | 
  | 
  | 
- | 
  | 
  | 
  | 
- | 
  | 
 
| Proceeds from issuance of subordinated debentures | 
  | 
  | 
- | 
  | 
  | 
  | 
- | 
  | 
  | 
  | 
15,050 | 
  | 
 
| Proceeds from issuance of preferred stock | 
  | 
  | 
- | 
  | 
  | 
  | 
39,958 | 
  | 
  | 
  | 
- | 
  | 
 
| Proceeds from issuance of common stock | 
  | 
  | 
112 | 
  | 
  | 
  | 
10,166 | 
  | 
  | 
  | 
- | 
  | 
 
| Dividends on preferred stock | 
  | 
  | 
(400 | 
) | 
  | 
  | 
(200 | 
) | 
  | 
  | 
- | 
  | 
 
| Dividends on common stock | 
  | 
  | 
(3,134 | 
) | 
  | 
  | 
- | 
  | 
  | 
  | 
- | 
  | 
 
| Net cash provided by financing activities | 
  | 
  | 
1,031 | 
  | 
  | 
  | 
49,924 | 
  | 
  | 
  | 
15,050 | 
  | 
 
| (Decrease) increase in cash and cash equivalents | 
  | 
$ | 
356 | 
  | 
  | 
$ | 
2,857 | 
  | 
  | 
$ | 
(44 | 
) | 
 
| Cash and cash equivalents at beginning of year | 
  | 
  | 
2,908 | 
  | 
  | 
  | 
51 | 
  | 
  | 
  | 
95 | 
  | 
 
| Cash and cash equivalents at end of year | 
  | 
$ | 
3,264 | 
  | 
  | 
$ | 
2,908 | 
  | 
  | 
$ | 
51 | 
 
 
 | 
      
      
        | Schedule of Quarterly Financial Information | 
        
 QUARTERLY FINANCIAL DATA (UNAUDITED) 
  
The following table sets forth certain unaudited quarterly financial data derived from our consolidated financial statements. Such data is only a summary and should be read in conjunction with our historical consolidated financial statements and related notes continued in this annual report on Form 10-K. 
  
|   | 
  | 
2012 Quarter Ended | 
  | 
 
|   | 
  | 
(Dollars in thousands, except per share data) | 
  | 
 
|   | 
  | 
March 31 | 
  | 
  | 
June 30 | 
  | 
  | 
September 30 | 
  | 
  | 
December 31 | 
  | 
 
| Interest income | 
  | 
$ | 
25,571 | 
  | 
  | 
$ | 
26,654 | 
  | 
  | 
$ | 
27,743 | 
  | 
  | 
$ | 
29,055 | 
  | 
 
| Interest expense | 
  | 
  | 
3,833 | 
  | 
  | 
  | 
3,749 | 
  | 
  | 
  | 
3,695 | 
  | 
  | 
  | 
3,624 | 
  | 
 
| Net interest income | 
  | 
  | 
21,738 | 
  | 
  | 
  | 
22,905 | 
  | 
  | 
  | 
24,048 | 
  | 
  | 
  | 
25,431 | 
  | 
 
| Provision for loan losses | 
  | 
  | 
2,383 | 
  | 
  | 
  | 
3,083 | 
  | 
  | 
  | 
1,185 | 
  | 
  | 
  | 
2,449 | 
  | 
 
| Net income available to common stockholders | 
  | 
  | 
8,155 | 
  | 
  | 
  | 
8,231 | 
  | 
  | 
  | 
9,202 | 
  | 
  | 
  | 
8,457 | 
  | 
 
| Net income per common share, basic | 
  | 
$ | 
1.37 | 
  | 
  | 
$ | 
1.38 | 
  | 
  | 
$ | 
1.53 | 
  | 
  | 
$ | 
1.40 | 
  | 
 
| Net income per common share, diluted | 
  | 
$ | 
1.20 | 
  | 
  | 
$ | 
1.21 | 
  | 
  | 
$ | 
1.35 | 
  | 
  | 
$ | 
1.23 | 
  | 
 
|   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
 
  
|   | 
  | 
2011 Quarter Ended | 
  | 
 
|   | 
  | 
(Dollars in thousands, except per share data) | 
  | 
 
|   | 
  | 
March 31 | 
  | 
  | 
June 30 | 
  | 
  | 
September 30 | 
  | 
  | 
December 31 | 
  | 
 
| Interest income | 
  | 
$ | 
20,961 | 
  | 
  | 
$ | 
22,080 | 
  | 
  | 
$ | 
23,312 | 
  | 
  | 
$ | 
25,058 | 
  | 
 
| Interest expense | 
  | 
  | 
3,985 | 
  | 
  | 
  | 
4,032 | 
  | 
  | 
  | 
4,093 | 
  | 
  | 
  | 
3,970 | 
  | 
 
| Net interest income | 
  | 
  | 
16,976 | 
  | 
  | 
  | 
18,048 | 
  | 
  | 
  | 
19,219 | 
  | 
  | 
  | 
21,088 | 
  | 
 
| Provision for loan losses | 
  | 
  | 
2,231 | 
  | 
  | 
  | 
1,494 | 
  | 
  | 
  | 
2,740 | 
  | 
  | 
  | 
2,507 | 
  | 
 
| Net income available to common stockholders | 
  | 
  | 
4,871 | 
  | 
  | 
  | 
5,845 | 
  | 
  | 
  | 
6,035 | 
  | 
  | 
  | 
6,487 | 
  | 
 
| Net income per common share, basic | 
  | 
$ | 
0.88 | 
  | 
  | 
$ | 
1.02 | 
  | 
  | 
$ | 
1.03 | 
  | 
  | 
$ | 
1.10 | 
  | 
 
| Net income per common share, diluted | 
  | 
$ | 
0.77 | 
  | 
  | 
$ | 
0.89 | 
  | 
  | 
$ | 
0.90 | 
  | 
  | 
$ | 
0.97 | 
  | 
 
 
 |