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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]    
Net income $ 1,791 $ 2,708
Unrealized losses on derivative instruments    
Unrealized holding losses arising during the period (54) (37)
Less: reclassification adjustment for losses included in net income 10 91
Other comprehensive income (loss) (44) 54
Comprehensive income $ 1,747 $ 2,762