Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 131,902	$ 326,217
Trade receivables, net of allowance for doubtful accounts of $182,716 and $60,347, respectively	831,197	1,992,885
Inventories	4,076,521	4,272,380
Prepaid expenses and other current assets	864,275	1,394,780
Total current assets	5,903,895	7,986,262
Property, Plant and Equipment:	37,596,424	37,575,736
Less accumulated depreciation and amortization	(31,206,918)	(28,484,708)
Net property, plant and equipment	6,389,506	9,091,028
Other Assets:
Patents, net of amortization of $203,099 and $169,626, respectively	1,630,437	1,567,567
Other non-current assets	93,438	105,313
Total Other Assets	1,723,875	1,672,880
Total Assets	14,017,276	18,750,170
Current Liabilities:
Accounts payable	3,281,051	3,625,322
Accrued expenses	1,589,164	1,713,935
Current portion of long-term debt	360,389	348,722
Current portion of convertible note payable, net of discount of $0 and $22,484, respectively	0	30,036
September 2015 fixed rate convertible notes, net of discount of $0 and $1,237,500, respectively	0	811,773
Promissory Note	530,888	500,493
Current portion of litigation settlement	566,705	541,255
Short term embedded derivative liabilities	2,461,593	613,834
Make-whole dividend liability	849,560	849,560
Total current liabilities	13,793,155	10,125,777
Accrued Litigation Settlement, net of current portion	49,644	339,505
Long-Term Debt	5,272,665	5,442,194
Accrued Warranty Liability	235,389	264,000
Commitments and Contingencies (Notes 4 & 17)
Stockholders’ (Deficit) Equity:
Common stock, $0.0001 par value, 450,000,000 shares authorized; 28,010,028 and 7,759,844 shares issued and outstanding, respectively	2,801	776
Additional paid in capital	361,438,859	347,659,691
Accumulated deficit	(366,775,258)	(345,081,794)
Total stockholders’ (deficit) equity	(5,333,577)	2,578,694
Total Liabilities and Stockholders’ (Deficit) Equity	14,017,276	18,750,170
Series E Preferred Stock [Member]
Current Liabilities:
Preferred stock	346,331	1,090,847
Series F Preferred Stock [Member]
Current Liabilities:
Preferred stock	1,467,739	0
Series G Preferred Stock [Member]
Current Liabilities:
Preferred stock	1,836,667	0
Series H Preferred Stock [Member]
Current Liabilities:
Preferred stock	503,068	0
Series A Preferred Stock [Member]
Stockholders’ (Deficit) Equity:
Series A preferred stock, $.0001 par value; 750,000 shares authorized and issued; 212,390 shares and 212,390 shares outstanding as of June 30, 2016 and December 31, 2015, respectively ($2,548,680 Liquidation Preference)	$ 21	$ 21