Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net loss	$ (2,160,394)	$ (3,350,880)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Shares issued for services	0	44,463
Depreciation	72,589	96,982
Option expense	153,853	266,954
Changes in:
Other current assets	98,565	75,491
Accounts payable	(186,027)	(61,033)
Accrued expenses	202,531	73,515
Deferred revenue	(726,291)	2,622,548
Other long-term assets	0	9,735
Net cash used in operating activities	(2,545,174)	(222,225)
Cash flows from investing activities
Purchase of property & equipment	(485)	(6,411)
Net cash used in investing activities	(485)	(6,411)
Cash flows from financing activities
Note payable - insurance	(55,144)	0
Payment of deferred offering costs	(27,512)	(104,857)
Net cash provided by financing activities	(82,656)	(104,857)
Net change in cash and cash equivalents	(2,628,315)	(333,493)
Cash and cash equivalents at beginning of period	12,583,764	9,906,373
Cash and cash equivalents at end of period	9,955,449	9,572,880
Cash paid for:
Interest	1,371	747
Income taxes	0	0
NON-CASH TRANSACTIONS
Unpaid offering costs	$ 8,395	$ 511,031