Quarterly report pursuant to Section 13 or 15(d)

Unaudited Condensed Statements of Operations Unaudited Condensed Statement of Operations (Paranthetical)

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Unaudited Condensed Statements of Operations Unaudited Condensed Statement of Operations (Paranthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2015
Jun. 30, 2014
Income Statement [Abstract]      
Impairment on Assets Held for Sale $ 1,350 $ 1,350 $ 0