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Note 7 - Reinsurance Single Premium QSR Program (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Dec. 31, 2017 | Oct. 31, 2017 | Mar. 31, 2019 | Mar. 31, 2018
Ceded Credit Risk [Line Items] |  |  |  |  |
Ceded Premiums Written | [1] |  |  | $ 10,156 | $ 19,931
Reinsurer Concentration Risk | 2016 Single Premium QSR Program | Radian Guaranty |  |  |  |  |
Ceded Credit Risk [Line Items] |  |  |  |  |
Risk In Force |  |  |  | 6,100,000 | 6,800,000
Reinsurer Concentration Risk | 2018 Single Premium QSR Program | Radian Guaranty |  |  |  |  |
Ceded Credit Risk [Line Items] |  |  |  |  |
Risk In Force |  |  |  | 2,100,000 | 400,000
Percent of Ceded Risk |  | 65.00% |  |  |
Ceded Premiums Written |  |  | $ 335,000 |  |
Reinsurer Concentration Risk | Single Premium QSR Program | Radian Guaranty |  |  |  |  |
Ceded Credit Risk [Line Items] |  |  |  |  |
Ceding Commissions Earned |  |  |  | 5,800 | 5,300
Ceded losses |  |  |  | $ 1,500 | $ 900
[1] | Net of profit commission.

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