CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (5,014,804)	$ (4,815,724)
Adjustments to reconcile net loss to net cash flows provided by operating activities:
Provision for losses on accounts receivable	10,403	24,001
Loss on disposal of equipment and deposits on equipment	158,612	80,679
Share based compensation	2,671,418	3,664,450
Fair value adjustment for outstanding warrants	28,175	70,163
Change in reserve for inventory obsolescence	128,112	(5,031)
Depreciation and amortization	4,237,677	3,624,282
Amortization of deferred financing costs and loan discount	72,069	70,974
Changes in operating assets and liabilities
Accounts receivable	(1,205,900)	(961,132)
Inventories	(1,139,291)	(492,074)
Prepaid expenses and other current assets	(562,498)	601,725
Other assets	(160,372)	(44,947)
Accounts payable	1,534,916	739,238
Accrued expenses	2,685,756	(497,140)
Net cash flows provided by operating activities	3,444,273	2,059,464
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of short-term investments		(7,499,205)
Proceeds from maturities of short-term investments	3,250,000
Acquisitions of property, plant and equipment, software and deposits on equipment	(21,248,425)	(10,035,332)
Acquisitions of land and building		(4,979,710)
Proceeds from sale of equipment	10,672
Net cash flows used in investing activities	(17,987,753)	(22,514,247)
CASH FLOWS FROM FINANCING ACTIVITIES:
Exercise of options to purchase common stock	233,156	242,456
Proceeds from borrowings under line of credit	8,000,000
Net cash flows provided by financing activities	8,233,156	242,456
NET CHANGE IN CASH AND CASH EQUIVALENTS	(6,310,324)	(20,212,327)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	8,029,413	36,259,252
CASH AND CASH EQUIVALENTS, END OF PERIOD	1,719,089	16,046,925
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid	131,302	99,744
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property, plant and equipment purchases in accounts payable	$ 1,232,743	$ 1,975,350