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SHAREHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2014

SHAREHOLDERS' EQUITY

Schedule of reconciliation of net income (loss) and weighted average common shares outstanding for purposes of calculating basic and diluted net income (loss) per share

		December 31,
		2014			2013			2012
Numerator:
Net income (loss)		$	(9,528,330	)	$	(6,316,041	)	$	15,671,879
Denominator:
Basic - weighted average common shares outstanding		7,322,358			7,280,527			7,171,212
Effect of Dilutive Securities:
Stock options		—			—			128,246
		7,322,358			7,280,527			7,299,458
Basic net income (loss) per share		$	(1.30	)	$	(0.87	)	$	2.19
Diluted net income (loss) per share		$	(1.30	)	$	(0.87	)	$	2.15

Summary of activity under the 2006 Plans

				Weighted
		Shares under		Average
		Option		exercise price
Balance at December 31, 2011		277,565		$	11.91
Granted		47,867		$	20.58
Exercised		(64,316	)	$	12.60
Canceled		(17,166	)	$	26.82
Balance at December 31, 2012		243,950		$	12.48
Granted		39,204		$	22.83
Exercised		(109,468	)	$	8.91
Canceled		(21,110	)	$	19.83
Balance at December 31, 2013		152,576		$	15.93
Granted		180,833		$	11.79
Exercised		(14,652	)	$	10.56
Canceled		(39,001	)	$	10.86
Balance at December 31, 2014		279,756		$	14.25

Schedule of information that applies to options outstanding and exercisable

The following information applies to options outstanding and exercisable at December 31, 2014:

						Weighted
						average
						remaining		Weighted
		Range of		Number		contractual		average
		Exercise prices		outstanding		life (in years)		exercise price
Outstanding options		$11.79 — $21.54		279,756		3.93		$	14.25
Exercisable options		$11.79 — $21.54		133,505		3.22		$	16.94

X

- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

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- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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