Note 7 - Segment Information - Summary of Financial Information Concerning Company's Reportable Segments (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenues	$ 253,717	$ 2,115,648	$ 510,692	$ 4,551,504
Cost of revenue	111,821	306,238	183,460	385,845
Operating expenses	674,429	422,878	1,658,675	800,868
Other income (expense)	32,189	765,673	98,277	766,063
Income (loss) from operations	(500,344)	2,152,205	(1,233,166)	4,130,854
Income (loss) from operations	(500,344)
Goodwill	212,445	212,445	212,445	212,445	$ 212,445
Identifiable assets	16,406,937	18,802,794	16,406,937	18,802,794	$ 17,940,758
Asset Management [Member]
Revenues	38,195	1,556,005	76,690	3,749,859
Cost of revenue	0	0	0	0
Operating expenses	156,466	112,939	276,000	230,650
Other income (expense)	(1,134)	0	(1,307)	0
Income (loss) from operations	(119,405)	1,443,066	(200,617)	3,519,209
Goodwill	0	0	0	0
Identifiable assets	147,805	17,334,335	147,805	17,334,335
Real Estate [Member]
Revenues	0	335,724	1,800	345,460
Cost of revenue	0	236,209	445	243,853
Operating expenses	(180)	18,249	29	24,734
Other income (expense)	0	760,472	43,390	755,677
Income (loss) from operations		841,738	44,716	832,550
Income (loss) from operations	180
Goodwill	0	0	0	0
Identifiable assets	19,738	51,579	19,738	51,579
Internet Operations [Member]
Revenues	215,522	223,919	432,202	456,185
Cost of revenue	111,821	70,029	183,015	141,992
Operating expenses	63,018	50,345	112,862	96,886
Other income (expense)	463	360	1,871	721
Income (loss) from operations		103,905	138,196	218,028
Income (loss) from operations	41,146
Goodwill	212,445	212,445	212,445	212,445
Identifiable assets	442,465	409,194	442,465	409,194
Product and Service, Other [Member]
Revenues	0	0	0	0
Cost of revenue	0	0	0	0
Operating expenses	455,125	241,345	1,269,784	448,598
Other income (expense)	32,860	4,841	54,323	9,665
Income (loss) from operations		(236,504)	(1,215,461)	(438,933)
Income (loss) from operations	(422,265)
Goodwill	0	0	0	0
Identifiable assets	$ 15,796,929	$ 1,007,686	$ 15,796,929	$ 1,007,686