Cash and Cash Equivalents (Tables)

6 Months Ended

Jun. 30, 2015

CASH AND CASH EQUIVALENTS [Abstract]

Cash and cash equivalents

	June 30, 2015		December 31, 2014
Cash on hand and at banks	$	26,505	$	79,103
Short-term deposits and highly liquid funds		336		20,392
Total cash and cash equivalents	$	26,841	$	99,495