Merger Agreement (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Merger Agreement [Abstract]
Common stock, par value (in dollars per share)	$ 0.15	$ 0.15
Right to receive cash per share after outstanding shares are cancelled after the merger (in dollars per share)	$ 27.00	$ 27.00
Termination fee payable by the company if merger agreement is terminated	$ 8,200,000	$ 8,200,000
Maximum reimbursement of expenses to the company if merger agreement is terminated by the parent	750,000	750,000
Business Combination Acquisition Related Costs	$ 515,000	$ 515,000