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INCOME PER COMMON SHARE (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
INCOME PER COMMON SHARE [Abstract]        
Incremental shares used in calculation of diluted income per share (in shares) 475,517 643,333 475,517 668,333
Incremental shares not included in calculation of diluted earnings per share (in shares) 55,000 80,000 55,000 55,000