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

9 Months Ended

Sep. 30, 2017

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 share grants with performance conditions for the nine months ended September 30, 2017:

Performance Share Grants with Performance Conditions
Below threshold performance	—
Threshold performance	169,178
Target performance	434,521
Maximum performance	666,497

Summary of stock grant activity

The following is a summary of the Company’s stock grant activity, both time and performance share grants, assuming target achievement for outstanding performance share grants for the following periods:

	September 30, 2017		December 31, 2016
Stock grants outstanding beginning of the year at target achievement	386,171		272,353
New stock grants/additional shares due to maximum achievement	295,243		287,091
Vested grants	(55,024	)	(172,749	)
Expired/forfeited grants	(40,545	)	(524	)
Stock grants outstanding	585,845		386,171

Summary of stock compensation costs for Employee and NDSI Plans

The following table summarizes stock compensation costs for the Company's 1998 Employee Stock Incentive Plan, or the Employee Plan, and NDSI Plan for the following periods:

($ in thousands)	Nine Months Ended September 30,
Employee Plan:	2017		2016
Expensed	$	2,067	$	1,768
Capitalized	402		139
	2,469		1,907
NDSI Plan - Expensed	504		363
Total Stock Compensation Costs	$	2,973	$	2,270