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Stock Compensation - Restricted Stock and Performance Share Grants (Tables) | 3 Months Ended
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Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of performance share grants with performance conditions | The following is a summary of the Company's Performance Condition Grants as of the three months ended March 31, 2019:
Performance Condition Grants
Below threshold performance | — |
Threshold performance | 186,366 |
Target performance | 422,264 |
Maximum performance | 640,981 |
Summary of stock grant activity | The following is a summary of the Company’s stock grant activity, both time and performance unit grants, assuming target achievement for outstanding performance grants for the three months ended March 31, 2019:
| March 31, 2019
Stock Grants Outstanding Beginning of Period at Target Achievement | 538,599 |
New Stock Grants/Additional Shares due to Achievement in Excess of Target | 115,426 |
Vested Grants | (82,112 | )
Expired/Forfeited Grants | — |
Stock Grants Outstanding End of Period at Target Achievement | 571,913 |
Summary of stock compensation costs for Employee and NDSI Plans | The following table summarizes stock compensation costs for the Company's 1998 Stock Incentive Plan, or the Employee Plan, and NDSI Plan for the following periods:
($ in thousands) | Three Months Ended March 31,
Employee Plan: | 2019 |  | 2018
Expensed | $ | 666 |  |  | $ | 761 |
Capitalized | 319 |  |  | 346 |
| 985 |  |  | 1,107 |
NDSI Plan - Expensed | 147 |  |  | 187 |
Total Stock Compensation Costs | $ | 1,132 |  |  | $ | 1,294 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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