Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Options Outstanding

2017 and 2016, which excludes non-compensatory stock options that are listed on the ASX, relating to 266,742 shares in each period:

	March 31,		March 31,
	2017		2016
	Number of Stock Options	Weighted Average Exercise Price	Number of Stock Options	Weighted Average Exercise Price
Stock options outstanding at beginning of period	110,828	$           18.24	326,424	$           24.90
Expired	(5,583)	11.04	-	-
Stock options outstanding at end of period	105,245	$           18.62	326,424	$           24.90
Stock options exercisable at end of period	105,139	$           18.60	326,111	$           24.89

Summary of Stock Options Outstanding and Exercisable by Stock Option Plan

The following table summarizes stock options outstanding and exercisable by stock option plan at March 31, 2017, which excludes non-compensatory stock options that are listed on the ASX, relating to 266,742 shares:

	Outstanding Stock Options		Exercisable Stock Options
Stock Option Plan	Number of Outstanding Stock Options	Weighted Average Exercise  Price	Number of Exercisable Stock Options	Weighted Average Exercise  Price
2004 Plan	4,792	$             35.14	4,792	$              35.14
2004 Directors’ Plan	1,390	629.52	1,390	629.52
2013 Plan	417	35.88	312	35.88
Replacement Stock Options	98,646	9.13	98,645	9.23
	105,245	$               18.62	105,139	$               18.60

Summary of Status of Non-Vested Restricted Shares

The following table summarizes RSU activity for the three-month periods ended March 31, 2017 and 2016:

	March 31,		March 31,
	2017		2016
	Number of RSUs	Weighted-Average Grant Date Fair Value	Number of RSUs	Weighted-Average Grant Date Fair Value
Unvested RSUs at beginning of period	8,649	$           43.71	32,699	$           34.25
Forfeited	-	-	(3,332)	32.21
Vested	(2,513)	31.32	(5,291)	32.71
Unvested RSUs at end of period	6,136	$           48.78	24,076	$           34.87