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Comprehensive Income Statement (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Net earnings $ 16,712,518 $ 1,298,758 $ (430,624)
Net unrealized gains (losses) on derivative instruments 852,168 541,335 (452,430)
Net unrealized gains (losses) on available for sale securities 427,748 (1,075,138) 47,349
Other comprehensive gain (loss) 1,279,916 (533,803) (405,081)
Comprehensive income (loss) $ 17,992,434 $ 764,955 $ (835,705)