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Note C - Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Allowance for Doubtful Accounts Receivable	$ 10,000	$ 10,000
Inventory Valuation Reserves	220,000	0
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	721,619	659,144
Impairment of Long-Lived Assets Held-for-use	0	0
Shipping, Handling and Transportation Costs	0	0
Income from Non-employee Options	$ 9,384
Share-based Goods and Nonemployee Services Transaction, Capitalized Cost		$ 25,346
Options and Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,679,152	3,329,769
Minimum [Member]
Property, Plant and Equipment, Useful Life	2 years
Maximum [Member]
Property, Plant and Equipment, Useful Life	7 years
Milestone China [Member]
Variable Interest Entity Majority Shareholder Ownership Percentage	53.00%
Equity Method Investment, Deferred Intercompany Profit (Loss), Percentage	40.00%

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The deferred percentage of the gross profit with recognized revenue from Entity and unconsolidated subsidiaries (including certain corporate joint ventures, and noncontrolled corporations), accounted for under the equity method of accounting.

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