Consolidated Balance Sheets - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 15,592,500	$ 9,906,373
Subscription receivable	232,934	0
Other current assets	329,323	758,943
Total current assets	16,154,757	10,665,316
Property & equipment, net of accumulated depreciation of $2,372,198 and $2,099,389, respectively	886,878	1,098,104
Other long-term assets	9,734	38,939
Total assets	17,051,369	11,802,359
Current liabilities:
Accounts payable	1,018,179	702,494
Accrued expenses	1,041,220	1,199,184
Deferred revenue	2,905,165	1,230,746
Total current liabilities	4,964,564	3,132,424
Long term liabilities:
Deferred revenue, net of current portion	726,293	1,230,748
Total liabilities	5,690,857	$ 4,363,172
Commitments and contingencies
Stockholders' equity:
Preferred stock, no par value, 10,000,000 shares authorized, none issued and outstanding	0	$ 0
Common stock, $0.01 par value, 150,000,000 shares authorized, 6,864,340 and 3,529,344 shares issued and outstanding	68,643	35,293
Additional paid in capital	162,253,818	148,724,102
Accumulated deficit	(150,961,949)	(141,320,208)
Total stockholders' equity	11,360,512	7,439,187
Total liabilities and stockholders' equity	$ 17,051,369	$ 11,802,359