Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity [Abstract]

Stock granted to our non-employee directors

Date of Grant	Number of Shares		Fair Value per Share		Fair Value of Grant
February 2010		53,844	$	3.15	$	169
July 2010		34,425		3.66		126
Total 2010 Grants:		88,269			$	295
February 2011		51,642		4.11	$	212
July 2011		25,632		5.54		142
Total 2011 Grants:		77,274			$	354
February 2012		31,820		6.60	$	210
July 2012		16,328		8.36		136
Total 2012 Grants:		48,148			$	346

Restricted stock units granted

							As of December 31, 2012:
Year of Grant	Number of RSUs		Fair Value per Share		Fair Value of Grant		Number Vested		Number Non- Vested
2010		33,518	$	3.15	$	105		8,380		25,138
2011		33,044	$	4.11		135		—		33,044
2012		40,393	$	6.60		266		—		40,393
		106,955			$	506		8,380		98,575

Stock option activity

	Shares			Exercise Price Per Share	Weighted Average Exercise Price
Outstanding at December 31, 2009		1,258,028		$1.59 to $13.10	$	6.38
Granted		—		$—	$	—
Expired		(350,000	)	$9.78	$	9.78
Outstanding at December 31, 2010		908,028		$1.59 to $13.10	$	5.07
Granted		—		$—	$	—
Expired		(90,000	)	$13.10	$	13.10
Outstanding at December 31, 2011		818,028		$1.59 to $6.70	$	4.19
Exercised		(150,000	)	$1.59	$	1.59
Granted		—		$—	$	—
Expired		(235,000	)	$6.70	$	6.70
Outstanding at December 31, 2012		433,028		$2.30 to $5.85	$	3.72

Outstanding stock options

Outstanding							Exercisable
Exercise Price	Shares		Weighted- Average Life (Years)		Intrinsic Value		Weighted- Average Exercise Price		Shares		Intrinsic Value
$5.77		31,923		4.17	$	48	$	5.77		31,923	$	48
5.85		142,382		5.08		204		5.85		106,787		153
2.30		258,723		6.17		1,288		2.30		129,362		644
		433,028		5.66	$	1,540	$	4.13		268,072	$	845

Stock compensation expense

	Year ended December 31,						Unrecognized Compensation Cost as of December 31, 2012
	2012		2011		2010
Compensation expense—RSUs	$	109	$	46	$	19	$	330
Compensation expense—Options		82		92		93		35
Total	$	191	$	138	$	112	$	365

Reserved shares of common stock

Warrants	86,221
Stock options	433,028
Restricted stock units	98,575
Reserved for future grants under 2008 and 2012 Equity Incentive Plans	794,923
Total	1,412,747