CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 3,496,313	$ 8,029,413
Short-term investments		3,250,000
Accounts receivable, net of allowance for doubtful accounts	8,669,359	7,030,719
Inventories, net	6,320,806	6,853,447
Prepaid expenses and other current assets	780,023	229,631
Total Current Assets	19,266,501	25,393,210
Property, plant and equipment, net	100,006,113	82,793,007
Deposits on equipment	3,244,730	3,243,519
Other assets	2,085,824	1,667,838
Total Assets	124,603,168	113,097,574
CURRENT LIABILITIES:
Accounts payable	5,669,788	6,668,643
Accrued expenses	4,720,267	2,274,557
Accrued warrants	185,307	204,314
Borrowings under Credit Facilities	9,000,000
Total Current Liabilities	19,575,362	9,147,514
Total Liabilities	19,575,362	9,147,514
STOCKHOLDERS' EQUITY:
Common stock — voting, $0.001 par value, 200,000,000 shares authorized, 33,839,791 and 33,536,940 issued and outstanding on September 30, 2016 and December 31, 2015, respectively	33,839	33,537
Additional paid-in capital	297,956,502	292,484,986
Accumulated deficit	(192,962,535)	(188,568,463)
Total Stockholders' Equity	105,027,806	103,950,060
Total Liabilities and Stockholders' Equity	$ 124,603,168	$ 113,097,574