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Note 2 - Significant Accounting Policies (Details Textual) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) | Jan. 01, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jan. 01, 2018 USD ($)
Number of Operating Segments |  | 2 |  |  |  |
Operating Lease, Right-of-Use Asset |  | $ 11,335 |  |  | [1] |
Operating Lease, Liability, Total |  | 10,837 |  |  |  |
Capitalized Contract Cost, Net, Total |  |  |  |  |  | $ 1,400
Retained Earnings (Accumulated Deficit), Ending Balance |  | 76,208 |  | 60,810 | [1] |
Deferred Income Tax Liabilities, Net, Total | [1] | $ 25,471 |  | $ 20,925 |  |
Accounting Standards Update 2016-02 [Member] |  |  |  |  |  |
Operating Lease, Right-of-Use Asset |  |  | $ 8,800 |  |  |
Operating Lease, Liability, Total |  |  | 8,300 |  |  |
Operating Lease, Right-of-Use Asset, Net |  |  | 500 |  |  |
Deferred Rent Credit |  |  | (100) |  |  |
Prepaid Expense |  |  | $ (600) |  |  |
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member] |  |  |  |  |  |
Retained Earnings (Accumulated Deficit), Ending Balance |  |  |  |  |  | 1,100
Deferred Income Tax Liabilities, Net, Total |  |  |  |  |  | $ 300
Minimum [Member] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 2 years |  |  |  |
Maximum [Member] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 15 years |  |  |  |
Capitalized Internal Use Software [Member] | Minimum [Member] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 3 years |  |  |  |
Capitalized Internal Use Software [Member] | Maximum [Member] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 7 years |  |  |  |
[1] | The Company has initially applied ASC 2016-02 (Topic 842) on January 1, 2019 using the modified retrospective method (note 2(v)). Under this method, the comparative information is not restated.

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