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Consolidated Balance Sheets - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 6,591,960 $ 2,969,416
Royalties receivable, net of reserves of $1,134,868 in 2019 and $1,094,774 in 2018 656,062 689,677
Prepaid expenses and other current assets 58,835 52,729
Total current assets 7,306,857 3,711,822
Fixed assets, net 141,720 313,177
Operating lease ROU assets 773,989
Deposits and other assets 33,567 33,567
Total assets 8,256,133 4,058,566
Current liabilities:    
Current portion of operating lease liability 163,236
Accounts payable 169,750 133,486
Accrued expenses and other 46,709 273,606
Deferred revenue 7,734 50,570
Total current liabilities 387,429 457,662
Operating lease liability, net of current portion 812,596
Warrant liability 501,414
Total liabilities 1,200,025 959,076
Shareholders' equity:    
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 31,254,262 in 2019 and 27,665,211 in 2018 3,125 2,767
Additional paid-in capital 122,552,895 114,787,657
Accumulated deficit (115,499,912) (111,690,934)
Total shareholders' equity 7,056,108 3,099,490
Total liabilities and shareholders' equity $ 8,256,133 $ 4,058,566