Note 2 - Summary of significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares
Number of Major United States Financial Institutions	2
Depreciation, Depletion and Amortization	$ 291,000	$ 299,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares	3,509,241	3,765,959
Period During Which Customer May Return Product Under Very Limited Circumstances	30 days
Maintenance and Support Revenue, Recognition Period	1 year
Period of Payment Terms Offered to Customers Distributions and Resellers Domestically	30 days
Period of Payment Terms Offered to Customers Distributors and Resllers Internationally	45 days
Period for Which Payment Terms can be Offered, Maximum	1 year
Allowance for Doubtful Accounts Receivable	$ 0	$ 0
Income Tax Examination, Penalties and Interest Accrued	$ 0	$ 0
Equipment and Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	1 year
Equipment and Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	5 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	2 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	5 years