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Balance Sheets (Current Period Unaudited) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Current assets:    
Cash $ 3,567,149 $ 3,280,289
Certificates of deposit 2,753,465 2,697,000
Equity investment in mutual funds 502,314 500,642
Accounts receivable 79,394 102,786
Prepaid expense and other assets 100,881 39,731
Total current assets 7,003,203 6,620,448
Property and equipment, net 9,240,880 9,242,082
Total assets 16,244,083 15,862,530
Current liabilities:    
Trade payables and accrued expenses 80,426 62,253
Unearned revenue 232,006 165,158
Income tax payable 26,360
Total current liabilities 338,792 227,411
Deferred income tax payable 187,664 187,664
Total liabilities 526,456 415,075
Stockholders' equity:    
Common stock, 3,000,000 authorized, no par value, 1,942,495 issued and outstanding as of June 30, 2020 and December 31, 2019 59,335 59,335
Retained earnings 15,658,292 15,388,120
Total stockholders' equity 15,717,627 15,447,455
Total liabilities and stockholders' equity $ 16,244,083 $ 15,862,530