Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 1,769,808	$ 1,787,248
Accounts receivable, net	197,505	169,074
Note receivable, net of discount	1,729,167	1,604,167
Prepaid expenses and other current assets, net	92,902	151,374
Total current assets	3,789,382	3,711,863
Property and equipment, net	20,099	23,487
Intangible assets, net	2,597,320	2,663,311
Operating lease right-of-use assets	14,145	23,063
Total assets	6,420,946	6,421,724
Current liabilities:
Accounts payable	1,605,034	1,610,416
Accrued expenses	347,610	430,858
Contract liabilities	11,809	13,020
Operating lease obligations – current portion	12,999	22,199
Total current liabilities	1,977,452	2,076,493
Long-term liabilities:
Deferred tax liability, net	710,901	707,952
Uncertain tax position liability	265,167	265,167
Total liabilities	2,953,520	3,049,612
Commitments and contingencies
Shareholders' equity:
Common stock, $0.001 par value, 25,000,000 shares authorized; 8,137,085 shares issued and 7,993,448 shares outstanding at March 31, 2023 and 7,840,124 shares issued and 7,696,487 shares outstanding at December 31, 2022	8,137	7,840
Accrued common stock bonus	0	82,180
Additional paid-in capital	73,275,397	72,800,976
Accumulated other comprehensive income	314,064	316,360
Accumulated deficit	(69,965,332)	(69,670,404)
Common stock in treasury, at cost, 143,637 shares at March 31, 2023 and December 31, 2022	(164,840)	(164,840)
Total shareholders' equity	3,467,426	3,372,112
Total liabilities and shareholders' equity	6,420,946	6,421,724
Series A Preferred Stock [Member]
Shareholders' equity:
Series A Preferred stock, $0.001 par value, 5,000,000 shares authorized; no shares issued and outstanding	$ 0	$ 0