Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts	$ 155	$ 174
Preferred stock at par value	$ 0.01	$ 0.01
Preferred stock shares authorized	2,500	2,500
Common stock at par value	$ 0.01	$ 0.01
Common stock shares authorized	7,500	7,500
Public common stock at par value	$ 0.01	$ 0.01
Public common stock shares authorized	7,500	7,500
Public common stock shares issued	54	52
Public common stock shares outstanding	54	52