Commitments and Contingencies (Details Textual) (USD $)	Jun. 30, 2011
Commitments and Contingencies (Textuals) [Abstract]
Compensation in statutory damage violations under TCPA	$ 500
Compensation for willful violations under TCPA	1,500
Mark A. Arthur case settlement fund - pre-amendment	19,500,000
Amount accrued under Mark A. Arthur case settlement fund	$ 24,150,000