Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (Parentheticals)

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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (Parentheticals) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Income Statement [Abstract]        
Interest costs capitalized $ 478 $ 112 $ 608 $ 328