Stockholder's Equity (Tables)

12 Months Ended

Dec. 31, 2012

Stockholder's Equity [Abstract]

Stock options activity

	Number of Shares		Weighted Average Exercise Price		Average Remaining Contractual Term		Aggregate Intrinsic Value
Options outstanding at January 1, 2012		15,000	$	16.88		4.0 years	$	—
Options granted		—		—		—		—
Options exercised		—		—		—		—
Options forfeited or expired		—		—		—		—
Options outstanding at December 31, 2012		15,000	$	16.88		3.0 years	$	—
Options exercisable at December 31, 2012		15,000	$	16.88		3.0 years	$	66,375

Nonvested stock activity

	Number of Shares			Weighted Average Grant Date Fair Value
Non-vested shares outstanding at January 1, 2012		494,995		$	24.17
Granted		213,240		$	19.02
Vested		(153,743	)	$	24.54
Forfeited		(68,431	)	$	24.30
Non-vested shares outstanding at December 31, 2012		486,061		$	22.33

Shares of common stock issued during 2012 under employee stock purchase plan

	Number of Shares		Weighted Average Per Share Price
Shares available as of January 1, 2009		178,231
Shares issued in 2010		28,508	$	28.04
Shares issued in 2011		38,291	$	23.40
Shares issued in 2012		50,185	$	15.58
Shares available as of December 31, 2012		61,247