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Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2012

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

Schedule of share-based compensation expense

Stock compensation expense recorded as a component of equity consisted of the following for the years ended December 31:

		2012				2011				2010
Share-based compensation - employees		$	555,898			$	627,353			$	688,408
Share-based compensation - nonemployees		76,920				128,158				98,241
Total share-based compensation		$	632,818			$	755,511			$	786,649

Schedule of stock options activity

Stock option activity for 2012 and 2011 was as follows:

		Number of shares			Weighted- average exercise price per share				Weighted- average remaining contractual term (years)		Aggregate intrinsic value
Outstanding, December 31, 2010		1,905,470			$	6.45			3.3		$	2,853,707
Options granted		—			—
Options exercised		(503,411	)		2.19
Options forfeited or expired		(125,901	)		10.24
Outstanding, December 31, 2011		1,276,158			7.75				2.9		700,294
Options granted		—			—
Options exercised		(173,688	)		3.55
Options forfeited or expired		(435,599	)		12.22
Outstanding, December 31, 2012		666,871			5.93				1.4		$	132,348
Exercisable at December 31, 2012		660,023			$	5.88			1.4		$	132,348

Schedule of stock options activity, additional disclosures

Information related to the stock option plans during 2012, 2011 and 2010 was as follows:

		2012				2011				2010
Intrinsic value of options exercised		$	495,480			$	1,742,103			$	5,519,588
Weighted-average fair value of options exercised		$	1.00			$	2.06			$	4.13

Schedule of stock options valuation assumptions

The fair value of employee and nonemployee options granted during 2010 was estimated using the Black-Scholes option-pricing model and consisted of the following assumptions:

		Range of Assumptions
		Employee Options		Non-Employee Options
Dividend yield		—		—
Expected term (years)		2.5 – 6.0		5.0
Expected volatility		49% – 53%		52% – 53%
Risk-free interest rate		0.8% – 2.8%		2.2% – 2.4%

Schedule of restricted stock activity

Restricted stock activity was as follows:

		Number of shares			Weighted- average grant-date fair value
Nonvested, December 31, 2010		—			$	—
Shares granted		149,320			5.40
Shares vested		(1,000	)		5.28
Shares forfeited		(12,150	)		5.28
Nonvested, December 31, 2011		136,170			5.41
Shares granted		286,453			4.87
Shares vested		(7,000	)		5.28
Shares forfeited		(32,093	)		5.68
Nonvested, December 31, 2012		383,530			4.99

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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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.

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