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Condensed Consolidated Balance Sheets - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 7,016,922 $ 2,969,416
Royalties receivable, net of reserves of $1,117,441 in 2019 and $1,094,774 in 2018 775,760 689,677
Prepaid expenses and other current assets 105,884 52,729
Total current assets 7,898,566 3,711,822
Fixed assets, net 239,888 313,177
Operating lease ROU assets 814,285
Deposits and other assets 33,567 33,567
Total assets 8,986,306 4,058,566
Current liabilities:    
Current portion of operating lease liabilities 163,276
Accounts payable 14,593 133,486
Accrued expenses and other 57,485 273,606
Deferred revenue 71,665 50,570
Total current liabilities 307,019 457,662
Operating lease liabilities, net of current portion 851,672
Warrant liability 501,414
Total liabilities 1,158,691 959,076
Shareholders' equity:    
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 31,090,291 in 2019 and 27,665,211 in 2018 3,109 2,767
Additional paid-in capital 122,067,527 114,787,657
Accumulated deficit (114,243,021) (111,690,934)
Total shareholders' equity 7,827,615 3,099,490
Total liabilities and shareholders' equity $ 8,986,306 $ 4,058,566