Consolidated Balance Sheets (Unaudited) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 5,627,700	$ 5,037,300
Marketable securities		318,700
Accounts receivable, net	499,700	511,200
Prepaid expenses and other current assets	124,300	102,600
Total current assets	6,251,700	5,969,800
Right-of-use assets	36,400	51,600
Property and equipment, net	3,700	5,300
Other assets	22,800	22,900
Total assets	6,314,600	6,049,600
Current liabilities
Accounts payable	215,200	234,200
Accrued expenses	116,300	61,800
Accrued wages	285,400	150,000
Lease liabilities- current	10,300	10,300
Deferred revenue- current	1,476,500	1,206,100
Total current liabilities	2,103,700	1,662,400
Long-term liabilities
Lease liabilities	25,700	40,900
Deferred revenue	203,700	264,800
Total liabilities	2,333,100	1,968,100
Commitments and contingencies
Stockholders’ equity
Preferred stock, $0.01 par value, 5,000,000 shares authorized, no shares issued and outstanding as of June 30, 2023 and December 31, 2022
Common stock, $0.0001 par value, 195,000,000 shares authorized, 18,976,165 and 18,826,342 shares issued and outstanding as of June 30, 2023 and December 31, 2022	1,900	1,900
Additional paid-in capital	82,145,100	82,145,100
Accumulated deficit	(78,165,500)	(78,065,500)
Total stockholders’ equity	3,981,500	4,081,500
Total liabilities and stockholders’ equity	$ 6,314,600	$ 6,049,600