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Note A - The Company and Summary of Significant Accounting Policies (Details Textual) - USD ($) | 12 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2016
Retained Earnings (Accumulated Deficit), Ending Balance | $ (75,134,316) | $ (67,076,492) | $ (75,134,316) | $ (66,836,475) |
Cash and Cash Equivalents, at Carrying Value, Ending Balance | 323,943 | 288,721 | $ 323,943 |  | $ 1,061,307
Operational Costs Per Month | $ 537,000 |  |  |  |
Capitalized Contract Cost, Amortization Period | 4 years |  | 4 years |  |
Allowance for Doubtful Accounts Receivable, Noncurrent | $ 1,720,000 | $ 1,000,000 | $ 1,720,000 |  |
Percentage of Remaining Balance Owned Reserved | 100.00% | 58.00% | 58.00% |  |
Asset Impairment Charges, Total | $ 0 | $ 0 |  |  |
Advertising Expense | $ 309,000 | $ 386,000 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 351,918 | 1,234,167 |  |  |
Minimum [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 3 years |  |  |
Maximum [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 4 years |  |  |
Licensing Agreements [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 10 years |  |  |

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