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Discontinued Operations
12 Months Ended
Dec. 31, 2015
Discontinued Operations [Abstract]  
Discontinued Operations
(9)  Discontinued Operations

In 2014, the Company sold for $664,000 in cash the warehouse and real estate used by its former petroleum refined products marketing operation to yield a pre-tax gain of $553,000 with such gain reported in discontinued operations for 2014.  In 2013 the Company completed an orderly wind-down and closure of its natural gas marketing segment.  Revenues from this segment included in net earnings from discontinued operations totaled $2,377,000 for the year ended December 31, 2013.  All obligations from these ventures were satisfied and no further events are anticipated.