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Stock Compensation (Narrative) (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Capitalized stock compensation expense | $ 174,000 | $ 157,000
ESPP Options [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
ESPP, percentage of market price for eligible employees | 85.00% |
Employees purchased common stock, shares | 37,000 | 36,000
RSUs And PSUs [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Authorized awards from approved stock incentive plans | 452,000 |
Aggregate grant date market value | $ 8,300,000 |
RSAs, RSUs, And PSUs [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Authorized awards from approved stock incentive plans |  | 381,000
Aggregate grant date market value |  | $ 9,500,000
Officers [Member] | Stock Options [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Grants of stock options | 314,000 | 226,000

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