Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash	$ 2,867,156	$ 3,280,289
Certificates of deposit	3,163,163	2,697,000
Equity investment in mutual funds	499,610	500,642
Accounts receivable	77,685	102,786
Prepaid expense and other assets	148,686	39,731
Total current assets	6,756,300	6,620,448
Property and equipment, net	9,241,556	9,242,082
Total assets	15,997,856	15,862,530
Current liabilities:
Trade payables and accrued expenses	128,353	62,253
Unearned revenue	167,325	165,158
Income tax payable	8,677
Total current liabilities	304,355	227,411
Deferred income tax payable	187,664	187,664
Total liabilities	492,019	415,075
Stockholders' equity:
Common stock, 3,000,000 authorized, no par value, 1,942,495 issued and outstanding as of March 31, 2020 and December 31, 2019	59,335	59,335
Retained earnings	15,446,502	15,388,120
Total stockholders' equity	15,505,837	15,447,455
Total liabilities and stockholders' equity	$ 15,997,856	$ 15,862,530