Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 8,122,709	$ 3,782,881	[1]
Accounts receivable (net of allowance of $43,080 and $46,130 as of March 31, 2014 and December 31, 2013, respectively)	34,121	57,151	[1]
Inventory (net of reserve of $325,000 as of March 31, 2014 and December 31, 2013)	5,648,020	5,631,205	[1]
Prepaid expenses and other current assets	465,140	879,698	[1]
Total Current Assets	14,269,990	10,350,935	[1]
Property and equipment, net	2,995,253	3,690,784	[1]
Patents and trademarks, net	40,526	41,795	[1]
Other assets	48,000	48,000	[1]
Total Assets	17,353,769	14,131,514	[1]
Current Liabilities:
Accounts payable (includes related parties of $85,972 and $32,902 as of March 31, 2014 and December 31, 2013, respectively)	1,311,174	1,478,995	[1]
Accrued expenses (includes related parties of $23,129 and $48,000 as of March 31, 2014 and December 31, 2013, respectively)	819,851	844,131	[1]
Deferred placement revenue	201,864	243,605	[1]
Warrant liability	8,464,865	3,017,142	[1]
Other current liabilities	61,815	67,934	[1]
Total Current Liabilities	10,859,569	5,651,807	[1]
Long Term Liabilities:
Deferred placement revenue	28,834	63,754	[1]
Deferred rent	110,111	120,120	[1]
Total Long Term Liabilities	138,945	183,874	[1]
Total Liabilities	10,998,514	5,835,681	[1]
COMMITMENTS AND CONTINGENCIES			[1]
Stockholders' Equity:
Preferred stock - $0.10 par value; authorized 10,000,000 shares: issued and outstanding: 12,300 at March 31, 2014 and 0 at December 31, 2013	1,230
Common stock - $0.001 par value; authorized 95,000,000 shares: Issued and outstanding 52,107,465 shares at March 31, 2014 and 47,501,596 at December 31, 2013	52,108	47,502	[1]
Additional paid-in capital	182,430,391	176,396,209	[1]
Accumulated deficit	(176,128,474)	(168,147,878)	[1]
Total Stockholders' Equity	6,355,255	8,295,833	[1]
Total Liabilities and Stockholders' Equity	$ 17,353,769	$ 14,131,514	[1]

[1] Derived from the audited balance sheet as of December 31, 2013