Equity and Redeemable Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2012

Equity and Redeemable Preferred Stock [Abstract]

Reconciliation of Company's 7% preferred stock activity

The following table summarizes the Company’s 7% preferred stock activity for the years ended December 31, 2011 and 2012:

	Preferred Shares			Preferred Stock
Balance at December 31, 2010		1,052,444		$	130,339
Stock-based compensation		-			1,549
Repurchased preferred stock shares		(46,658	)		(5,972	)
Forfeited shares		(2,678	)		-
Balance at December 31, 2011		1,003,108		$	125,916
Stock-based compensation		-			1,464
Converted preferred stock shares		(531	)		(68	)
Repurchased preferred stock shares		(44,244	)		(5,663	)
Balance at December 31, 2012		958,333		$	121,649