CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net loss	$ (5,068,995)	$ (2,208,083)
Adjustments to reconcile net loss to cash used in operating activities
Stock based compensation expense	143,063	145,971
Depreciation and amortization	1,737,013	1,694,099
Gain on sale of assets	(2,293)	(42,680)
Bad debt recovery	(303,796)	0
Increase in fair value of derivative warrant liability	1,705,094	431,751
Loss on commodity derivative contracts	759,767	456,402
Net cash settlements on commodity derivatives	(657,577)	(763,997)
Amortization of debt discount and deferred costs	143,477	143,477
Changes in operating assets and liabilities
Accounts receivable	(4,375,379)	51,694
Inventory	1,820,641	(1,807,783)
Prepaid expenses	1,173,298	(89,472)
Accounts payable	1,359,493	1,760,946
Accrued expenses	(408,686)	(614,230)
Other assets	(2,000)	(52,000)
Net cash used in operating activities	(1,976,880)	(893,905)
Cash flows from investing activities
Purchase of fixed assets	(774,897)	(490,361)
Proceeds from sale of fixed assets	10,000	75,230
Net cash used in investing activities	(764,897)	(415,131)
Cash flows from financing activities
Payments on finance leases	(23,382)
Payments on finance leases		(908)
Line of credit (payments) proceeds, net	2,525,874	(352,139)
Proceeds from note payable	187,501	1,667,426
Payments on note payable	(1,021,239)	(1,058,254)
Net cash provided by financing activities	1,668,754	256,125
Net change in cash, cash equivalents and restricted cash	(1,073,023)	(1,052,911)
Cash, cash equivalents, and restricted cash at beginning of the period	2,849,831	1,105,787
Cash, cash equivalents, and restricted cash at end of period	1,776,808	52,876
SUPPLEMENTAL INFORMATION
Cash paid for interest	602,732	477,583
Cash paid for taxes	0	0
NON-CASH INVESTING AND FINANCING TRANSACTIONS
Accretion of discount on Series B and B1 Preferred Stock	560,675	642,290
Dividends-in-kind accrued on Series B and B1 Preferred Stock	406,795
Series B1 Preferred Stock
NON-CASH INVESTING AND FINANCING TRANSACTIONS
Conversion of Series B1 Preferred Stock into common stock	149,914	$ 779,500
Dividends-in-kind accrued on Series B and B1 Preferred Stock	$ 236,640

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The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders.

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Cash, Cash Equivalents, And Restricted Cash, Period Increase (Decrease)

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