CONDENSED BALANCE SHEETS - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 7,691,919	$ 11,466,807
Accounts receivable from related party	50,326	23,544
Trade accounts receivable	7,623	14,013
Inventory	159,048	171,575
Prepaid expenses	565,913	504,719
Total current assets	8,474,829	12,180,658
Fixed assets, net	691,934	773,779
Intangible assets, net	156,937	195,765
Other assets	105,063	116,919
Total assets	9,428,763	13,267,121
Current liabilities:
Accounts payable	360,238	513,927
Accrued expenses	407,498	343,225
Deferred revenue	2,968,819	3,154,498
Total current liabilities	3,736,555	4,011,650
Long Term Debt	4,773,466	4,738,614
Total Liabilities	$ 8,510,021	$ 8,750,264
Commitments and contingencies (Note 6)
Stockholders’ equity:
Common stock, $0.001 par value — 300,000,000 shares authorized; 172,786,907 and 172,683,342 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively	$ 172,789	$ 172,686
Additional paid-in capital	125,846,246	125,434,483
Accumulated deficit	(125,100,293)	(121,090,312)
Total stockholders’ equity	918,742	4,516,857
Total liabilities and stockholders’ equity	$ 9,428,763	$ 13,267,121

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.