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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Cash flow from operating activities:    
Net loss $ (285,089) $ (662,242)
Gain from sale of discontinued operations 0 (117,445)
Loss from continuing operations (285,089) (779,687)
Adjustment to reconcile net loss to net cash provided by operating activities:    
Depreciation and amortization 11,522 23,654
Amortization of lease right 72,331 119,914
Fair value of vested stock options 631,335 610,634
Fair value of vested restricted common stock 376,338 340,961
Changes in operating assets and liabilities:    
Accounts receivable (268,193) 43,909
Prepaid expenses and other current assets (28,505) 199,289
Prepaid royalties (184,554) (720,367)
Deposits and other assets 5,360 8,094
Accounts payable and accrued expenses 337,343 1,486,950
Deferred revenue 1,279,844 1,214,301
Lease liability (79,326) (129,187)
Net cash provided by operating activities 1,868,406 2,418,465
Cash flow from investing activities:    
Purchase of property and equipment (19,854) 0
Net cash used in investing activities (19,854) 0
Cash flow from financing activities:    
Proceeds from the exercise of stock options 88,850 0
Proceeds from the exercise of warrants 237,501 1,875,000
Common stock repurchase and retirement (178,012) (321,601)
Repurchase of stock options and warrants (308,313) 0
Net cash provided by (used in) financing activities (159,974) 1,553,399
Effect of exchange rate changes 4,203 (13,398)
Net increase in cash and cash equivalents 1,692,781 3,958,466
Cash and cash equivalents, beginning of period 9,311,556 5,353,090
Cash and cash equivalents, end of period 11,004,337 9,311,556
Supplemental disclosures of cash flow information:    
Cash paid for income taxes $ 3,204 $ 7,836