Stock Compensation - Restricted Stock and Performance Share Grants (Tables)

3 Months Ended

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