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MARKETABLE SECURITIES
 3 Months Ended
Mar. 31, 2016
Marketable Securities [Abstract]  
MARKETABLE SECURITIES
MARKETABLE SECURITIES
The U.S Treasury securities purchased by the Company with the proceeds from the PBFX Offering are used as collateral to secure a three-year, $300,000 term loan facility entered into by PBFX (the “PBFX Term Loan”). PBFX anticipates holding the securities for an indefinite amount of time (the securities will be rolled over as they mature). As necessary and at the discretion of PBFX, these securities are expected to be liquidated and the proceeds used to fund future capital expenditures. While PBFX does not routinely sell marketable securities prior to their scheduled maturity dates, some of PBFX's investments may be held and restricted for the purpose of funding future capital expenditures and acquisitions, so these investments are classified as available-for-sale marketable securities as they may occasionally be sold prior to their scheduled maturity dates due to the unexpected timing of cash needs. The carrying value of these marketable securities approximates fair value and are measured using Level 1 inputs. The maturities of the marketable securities range from one to three months and are classified on the balance sheet in non-current assets.
As of March 31, 2016 and December 31, 2015, the Company held $234,408 and $234,258, respectively, in marketable securities. The gross unrecognized holding gains and losses as of March 31, 2016 and December 31, 2015 were not material. The net realized gains or losses from the sale of marketable securities were not material for the three months ended March 31, 2016 and 2015.