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Note 1 - Condensed Consolidated Financial Statements - Business Overview, Recent Developments and Significant Accounting Policies Significant Accounting Policies (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Unbilled Receivables - Services Contracts |  | $ 19,580,000 |  | $ 19,580,000 |  | $ 22,257,000 |
ASU 2016-01 |  |  |  |  |  |  |
Increase in Invested Assets |  |  |  |  |  | 2,300,000 |
Retained Earnings | ASU 2016-01 |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | 2,061,000 | $ 0
Retained Earnings | ASU 2018-02 |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | (2,724,000) | 0
AOCI Attributable to Parent | ASU 2016-01 |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | 224,000 | 0
AOCI Attributable to Parent | ASU 2018-02 |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | 2,724,000 | $ 0
Unrealized Loss Related to Equity Securities [Member] | Retained Earnings | ASU 2016-01 |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | (200,000) |
Practical Expedient to Measure Certain Other Investments Using the NAV [Member] | Retained Earnings | ASU 2016-01 |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | 2,300,000 |
Mortgage and Real Estate Services Segment |  |  |  |  |  |  |
Sales Revenue, Services and Other, Net | [1] | 37,781,000 | $ 41,062,000 | 110,055,000 | $ 121,126,000 |  |
Inter-segment revenues |  | 766,000 | 1,491,000 | 2,653,000 | 5,726,000 |  |
Net Premiums Earned and Net Investment Income |  | 3,100,000 |  | 5,500,000 |  |  |
Bad-debt expense |  | 0 | 0 | 0 | 0 |  |
Accounts Receivable - Services Contracts |  | 12,544,000 |  | 12,544,000 |  | 17,391,000 |
Unbilled Receivables - Services Contracts |  |  |  |  |  | 22,257,000 |
Deferred Revenues - Services Contracts |  | 4,131,000 |  | 4,131,000 |  | $ 3,235,000 |
Mortgage and Real Estate Services Segment | Mortgage Services |  |  |  |  |  |  |
Sales Revenue, Services and Other, Net |  | 14,663,000 | 17,005,000 | 44,998,000 | 53,158,000 |  |
Mortgage and Real Estate Services Segment | Real Estate Services |  |  |  |  |  |  |
Sales Revenue, Services and Other, Net |  | 20,920,000 | 17,386,000 | 58,124,000 | 49,863,000 |  |
Mortgage and Real Estate Services Segment | Title Services |  |  |  |  |  |  |
Sales Revenue, Services and Other, Net |  | $ 2,198,000 | $ 6,671,000 | $ 6,933,000 | $ 18,105,000 |  |
[1] | Includes inter-segment revenues of $0.8 million and $2.7 million for the three and nine months ended September 30, 2018 and $1.5 million and $5.7 million for the three and nine months ended September 30, 2017, respectively. For the three and nine months ended September 30, 2018, amounts exclude $3.1 million and $5.5 million, respectively, of Services segment net premiums earned—insurance and net investment income, as both are excluded from the scope of the revenue recognition standard. See Note 3 for segment information.

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