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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Cash flows from operating activities:    
Net loss $ (442,604) $ (462,638)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 6,449 6,816
Unrealized gain on marketable securities (22,900)
ROU asset amortization 35,743 36,958
Bad debt recovery (5,000)
Change in assets and liabilities:    
Royalty receivables 46,621 (89,264)
Prepaid expenses and other assets (143,987) 7,785
Accounts payable and accrued expenses 157,437 (33,288)
Deferred revenue 11,921
Operating lease liability (50,779) (47,513)
Net cash used in operating activities (391,120) (597,123)
Cash flows from investing activities:    
Purchases of fixed assets (50) (702)
Purchases of marketable securities (2,965,160)
Net cash used in investing activities (50) (2,965,862)
Cash flows from financing activities:    
Net proceeds from exercise of options and warrants 8,670 484,502
Net cash provided by financing activities 8,670 484,502
Net decrease in cash and cash equivalents (382,500) (3,078,483)
Cash and cash equivalents at beginning of period 2,475,958 4,230,916
Cash and cash equivalents at end of period $ 2,093,458 $ 1,152,433