CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES -Schedule of Future Minimum Operating Lease Commitments (Details)	Dec. 31, 2018 USD ($)
Long-term Purchase Commitment [Line Items]
2019	$ 4,990,276
2020	4,754,802
2021	4,639,447
2022	4,011,094
2023	1,432,000
Thereafter	2,975,000
Total minimum future lease commitments	22,802,619
Office Facilities
Long-term Purchase Commitment [Line Items]
2019	727,028
2020	549,264
2021	433,909
2022	314,000
2023	300,000
Thereafter	2,975,000
Total minimum future lease commitments	5,299,201
Vehicles
Long-term Purchase Commitment [Line Items]
2019	219,248
2020	161,538
2021	161,538
2022	31,094
Total minimum future lease commitments	573,418
Plant leases
Long-term Purchase Commitment [Line Items]
2019	4,044,000
2020	4,044,000
2021	4,044,000
2022	3,666,000
2023	1,132,000
Total minimum future lease commitments	$ 16,930,000