COMMITMENTS AND CONTINGENCIES (Narrative) (Details)	Dec. 31, 2016 USD ($)
Purchase commitments [Member] \| Purchase agreement, minimum amount over next two years [Member]
COMMITMENTS AND CONTINGENCIES [Line Items]
Outstanding commitments	$ 32,797,550

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration