Note 12 - Financial Statement Captions - Prepaid Expenses and Other Current Assets (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Deferred costs of software sales	$ 453,607	$ 294,115
Other	25,708	37,609
Prepaid insurance	20,791	15,499
Credit with software supplier	57	37,557
Prepaid rent		8,753
Total	500,163	393,533
Accrued accounting and auditing expense	47,000	48,750
Other	7,257	19,235
Accrued costs of software sales		13,500
Other accrued liabilities	$ 54,257	$ 81,485