CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)	6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Cash flows from operating activities
Net income (loss)	$ 453,721	$ (5,003,778)
Adjustments to reconcile net loss to cash provided by (used in) operating activities
Stock based compensation expense	329,721	297,473
Depreciation and amortization	3,427,175	3,245,090
(Gain) loss on sale of assets	(51,523)	39,499
(Increase) decrease in fair value of derivative warrant liability	(44,162)	(1,305,441)
Loss on commodity derivative contracts	1,212,087	0
Net cash settlements on commodity derivatives	(1,393,970)	0
Amortization of debt discount and deferred costs	290,746	428,159
Changes in operating assets and liabilities
Accounts receivable	(1,300,384)	1,331,191
Inventory	(2,156,895)	(208,027)
Prepaid expenses	687,156	1,883,798
Accounts payable and accrued expenses	1,947,234	(1,615,582)
Other assets	(205,942)	129,200
Net cash provided by (used in) operating activities	3,194,964	(778,418)
Cash flows from investing activities
Purchase of fixed assets	(1,570,094)	(990,096)
Proceeds from sale of fixed assets	85,230	223,296
Net cash provided by (used in) investing activities	(1,754,687)	(2,573,880)
Cash flows from financing activities
Payments on capital leases	(10,797)	0
Payment of debt issuance costs	0	(1,718,088)
Line of credit (payments) proceeds, net	(816,797)	109,710
Proceeds from note payable	1,667,426	14,763,297
Payments on note payable	(1,667,066)	(11,041,958)
Net cash provided by (used in) financing activities	(827,234)	2,112,961
Net change in cash, cash equivalents and restricted cash	613,043	(1,239,337)
Cash, cash equivalents, and restricted cash at beginning of the period	1,105,787	3,206,158
Cash, cash equivalents, and restricted cash at end of period	1,718,830	1,966,821
SUPPLEMENTAL INFORMATION
Cash paid for interest	1,126,362	746,893
Cash received for income tax benefit	0	0
NON-CASH INVESTING AND FINANCING TRANSACTIONS
Accretion of discount on Series B and B-1 Preferred Stock	928,678	843,298
Dividends-in-kind accrued on Series B and B-1 Preferred Stock	1,359,423
Equipment acquired under capital leases	450,098	0
Contingent consideration on Nickco acquisition	0	284,410
Common restricted shares for Nickco acquisition	0	408,000
Return of common shares for sale escrow	0	1,109
Series A Preferred Stock
NON-CASH INVESTING AND FINANCING TRANSACTIONS
Conversion of preferred stock into common stock	34	36
Series B1 Preferred Stock
NON-CASH INVESTING AND FINANCING TRANSACTIONS
Conversion of preferred stock into common stock	987,259	119,440
Dividends-in-kind accrued on Series B and B-1 Preferred Stock	396,717
Specialty Environmental Services, Texas Operations
Cash flows from investing activities
Acquisition of Acadiana	(269,823)	0
Acadiana Recovery, LLC
Cash flows from investing activities
Acquisition of Acadiana	0	(710,350)
Nickco Recycling, LLC
Cash flows from investing activities
Acquisition of Acadiana	$ 0	$ (1,096,730)