Consolidated Balance Sheets - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 10,972,482	$ 33,718,713
Restricted cash	34,174	634,416
Total cash, cash equivalents and restricted cash	11,006,656	34,353,129
Short-term investments	28,226,026
Accounts receivable	1,012,491	3,461,938
Tax refund receivable	968,597	1,008,973
Prepaid expenses and other current assets	410,148	548,094
Total current assets	41,623,918	39,372,134
Property and equipment, net	1,162,715	1,342,802
Right of use asset	717,303
Intangible assets, net	12,741,656	13,851,924
Other assets	142,331	183,682
Total assets	56,387,923	54,750,542
Current liabilities:
Accounts payable	49,884	372,860
Accrued expenses and other current liabilities	2,311,824	4,082,949
Notes payable	105,062	71,596
Total current liabilities	2,466,770	4,527,405
Deferred income taxes		58,500
Contingent consideration	2,750,000
Other long-term liabilities	1,787,203	1,852,071
Total liabilities	7,003,973	6,437,976
Commitments and contingencies (Note 12)
Stockholders’ equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized; 15,338,356 and 9,078,735 shares issued; 15,338,072 and 9,078,238 shares outstanding at September 30, 2019 and December 31, 2018, respectively	1,502	876
Additional paid-in capital	187,683,155	170,207,844
Accumulated deficit	(133,279,497)	(116,855,991)
Accumulated other comprehensive loss	(5,021,210)	(5,040,163)
Total stockholders’ equity	49,383,950	48,312,566
Total liabilities and stockholders’ equity	$ 56,387,923	$ 54,750,542