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Condensed Consolidated Statements of Cash Flows - USD ($)
 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Cash flow from operating activities:    
Net loss $ (853,587) $ (245,961)
Adjustment to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation and amortization 7,156 6,762
Amortization of lease right 0 61,886
Fair value of vested stock options 127,668 419,785
Fair value of vested restricted common stock 343,981 186,954
Changes in operating assets and liabilities:    
Accounts receivable 99,113 221,657
Prepaid expenses and other current assets (55,609) (55,533)
Prepaid royalties 249,775 46,503
Accounts payable and accrued expenses (172,283) (550,693)
Deferred revenue (63,113) 861,000
Lease liability 0 (67,882)
Net cash provided by (used in) operating activities (316,899) 884,478
Cash flow from investing activities:    
Purchase of property and equipment (26,991) (6,134)
Net cash used in investing activities (26,991) (6,134)
Cash flow from financing activities:    
Proceeds from the exercise of stock options 30,671 14,100
Proceeds from the exercise of warrants 59,500 81,251
Common stock repurchase (67,812) (127,274)
Net cash provided by (used in) financing activities 22,359 (31,923)
Effect of exchange rate changes (3,092) 5,527
Net increase (decrease) in cash and cash equivalents (324,623) 851,948
Cash and cash equivalents, beginning of period 11,004,337 9,311,556
Cash and cash equivalents, end of period 10,679,714 10,163,504
Supplemental disclosures of cash flow information:    
Cash paid for income taxes $ 5,770 $ 2,505