ADVANCES FROM CUSTOMERS (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Total	$ 35,182,095	$ 17,482,940
Less: Advances from customers - short-term portion	33,027,795	10,213,940
Advances from customers - long-term portion	2,154,300	7,269,000
Customer A [Member]
Total	28,123,324	15,827,579
Customer B [Member]
Total	4,184,426	392,037
Customer D [Member]
Total	1,503,529	0
Customer E [Member]
Total	905,840	1,017,427
Other Customer [Member]
Total	$ 464,976	$ 245,897

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

Name:	us-gaap_ContractWithCustomerLiabilityNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant