CONDENSED BALANCE SHEETS (USD $)	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 4,191,356	$ 7,542,281
Accounts receivable from related party	45,655	534,703
Trade accounts receivable	20,542	8,817
Inventory	190,532	190,424
Prepaid expenses	647,735	676,358
Total current assets	5,095,820	8,952,583
Fixed assets, net	834,606	844,606
Intangible assets, net	242,815	289,865
Other assets	38,001	38,001
Total assets	6,211,242	10,125,055
Current liabilities:
Accounts payable	401,474	835,439
Accrued expenses	294,934	252,953
Deferred revenue	3,238,735	3,783,441
Total current liabilities	3,935,143	4,871,833
Commitments and contingencies (Note 6)
Stockholders' equity:
Common stock, $0.001 par value — 300,000,000 shares authorized; 122,516,317 and 122,448,707 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	122,518	122,449
Additional paid-in capital	120,149,345	119,885,371
Accumulated deficit	(117,995,764)	(114,754,598)
Total stockholders' equity	2,276,099	5,253,222
Total liabilities and stockholders' equity	$ 6,211,242	$ 10,125,055