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

3 Months Ended

Mar. 31, 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 three months ended March 31, 2017:

Performance Share Grants with Performance Conditions
Below threshold performance	—
Threshold performance	180,345
Target performance	456,853
Maximum performance	699,996

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:

	March 31, 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	(50,024	)	(172,749	)
Expired/forfeited grants	(11,099	)	(524	)
Stock grants outstanding	620,291		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)	Three Months Ended March 31,
Employee Plan:	2017		2016
Expensed	$	630	$	794
Capitalized	65		56
	695		850
NDSI Plan - Expensed	181		179
Total Stock Compensation Costs	$	876	$	1,029