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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

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

Summary of Stock Options Outstanding

The following table summarizes stock options outstanding and changes for the six-month periods ending June 30, 2018 and 2017:

		June 30, 2018								June 30, 2017
		Number of Stock Options				Weighted Average Exercise Price				Number of Stock Options				Weighted Average Exercise Price
Stock options outstanding at beginning of period			286,174			$	5.53				110,828			$	18.24
Granted			364,000				1.68				-				-
Expired			(34,012	)			9.33				(5,583	)			11.04
Stock options outstanding at end of period			616,162			$	3.05				105,245			$	18.62
Stock options exercisable at end of period			612,162			$	3.06				105,139			$	18.60

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 June 30, 2018:

		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			556				186.00				556				186.00
2013 Plan			189,581				1.48				189,581				1.48
Replacement Stock Options-Alabama Graphite			336,000				1.70				332,000				1.70
Replacement Stock Options-Anatolia Energy			85,233				8.87				85,233				8.87
			616,162			$	3.05				612,162			$	3.06

Summary of Status of Non-vested Restricted Shares

The following table summarizes RSU activity for the six-month periods ended June 30, 2018 and 2017:

		June 30, 2018								June 30, 2017
		Number of RSUs				Weighted- Average Grant Date Fair Value				Number of RSUs				Weighted- Average Grant Date Fair Value
Unvested RSUs at beginning of period			178,897			$	1.40				8,649			$	43.71
Forfeited			(9,429	)			1.40				-				-
Vested			-				-				(3,625	)			31.32
Unvested RSUs at end of period			169,468			$	1.40				5,024			$	52.64

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Tabular disclosure of the changes in outstanding nonvested restricted stock 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)
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Tabular disclosure of employee stock purchase plan activity.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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