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Summary Of Significant Accounting Policies (Accounting Changes To Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | $ 181,618 |  |  |  |  | $ 146,890 | $ 181,618 | $ 146,890 | $ 138,951 |  |  |  |
Net income | $ 4,960 | [1] | $ 1,297 | $ 5,027 | 3,082 | $ 7,426 | [1] | $ 1,576 | $ 19,051 | 3,048 | 14,366 | 31,101 | 9,678 | [2] |  |  |
Balance | 180,547 |  |  |  |  | 181,618 |  |  |  |  | 180,547 | 181,618 | 146,890 |  |  |  |
Deferred tax asset |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 26,235 | $ 24,585 | $ 24,746
Other assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,129 |  | 5,082
Total Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 439,028 |  | 423,403
Retained earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 47,616 | $ 33,250 | 33,056
Total stockholders’ equity | $ 180,547 |  |  |  | 181,618 | 181,618 |  |  |  | 146,890 | 181,618 | 146,890 | 138,951 |  | $ 180,547 |  | 181,618
As Reported [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | 181,241 |  |  |  |  | 146,615 | 181,241 | 146,615 | 138,951 |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  | 30,999 | 9,403 |  |  |  |
Balance |  |  |  |  |  | 181,241 |  |  |  |  |  | 181,241 | 146,615 |  |  |  |
Deferred tax asset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 24,908
Other assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,543
Total Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 423,026
Retained earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 32,679
Total stockholders’ equity |  |  |  |  | 181,241 | 181,241 |  |  |  | 146,615 | 181,241 | 146,615 | 138,951 |  |  |  | 181,241
Adjustments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | 377 |  |  |  |  | 275 | 377 | 275 |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  | 102 | 275 |  |  |  |
Balance |  |  |  |  |  | 377 |  |  |  |  |  | 377 | 275 |  |  |  |
Deferred tax asset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (162)
Other assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 539
Total Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 377
Retained earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 377
Total stockholders’ equity |  |  |  |  | $ 377 | $ 377 |  |  |  | $ 275 | $ 377 | $ 275 | $ 275 |  |  |  | $ 377
[1] | Net income for the 4th quarter of 2017 includes approximately $2.5 million net tax benefit from non-recurring items of tax benefit and expense related to the Tax Cuts and Jobs Act enacted December 2017 and dissolution of a non-operating foreign subsidiary.
[2] | Certain prior year balances have been reclassified to conform to the 2017 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).

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