CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash	$ 107,349,460	$ 127,135,628
Accounts receivable, net of allowance for doubtful accounts of $403,535 and $380,580, respectively	5,096,731	4,328,802
Inventory	1,620,872	1,485,358
Other current assets	5,098,132	6,604,284
Total current assets	119,165,195	139,554,072
Fixed assets, net	425,539	437,055
Other Assets:
Intangible assets, net	3,220,686	3,099,747
Security deposit	150,522	139,036
Total other assets	3,371,208	3,238,783
Total assets	122,961,942	143,229,910
Current Liabilities:
Accounts payable	6,283,824	4,097,600
Other current liabilities	9,375,818	9,223,595
Total current liabilities	15,659,642	13,321,195
Commitments and Contingencies - See Note 14
Stockholders' Equity:
Preferred stock - par value $0.001; 10,000,000 shares authorized; no shares issued and outstanding
Common stock - par value $0.001; 350,000,000 shares authorized: 216,584,274 and 216,429,642 issued and outstanding, respectively	216,584	216,430
Additional paid-in capital	518,146,665	516,351,405
Accumulated deficit	(411,060,949)	(386,659,120)
Total stockholders' equity	107,302,300	129,908,715
Total liabilities and stockholders' equity	$ 122,961,942	$ 143,229,910

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.