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EARNINGS PER SHARE - Reconciliation of weighted average shares outstanding (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
EARNINGS PER SHARE    
Net income available for stockholders: $ 1,449 $ 1,632
Less: Dividends paid Common Stock (1,141) (755)
Undistributed income $ 308 $ 877
Basic shares outstanding:    
Common Stock 35,549 35,532
Restricted shares of common stock 1,246 1,097
Basic shares outstanding, Total 36,795 36,629
Diluted shares outstanding:    
Common Stock 35,549 35,532
Dilutive effect of stock based awards 208 190
Diluted shares outstanding excluding restricted shares of common stock, Total 35,757 35,722
Restricted shares of common stock 1,246 1,097
Diluted shares outstanding, Total 37,003 36,819