Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details Textual)

v2.4.0.6
Segment Information (Details Textual) (USD $)
6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2012
Segment
Dec. 31, 2011
Jun. 30, 2012
Assets Held-for-sale [Member]
Jun. 30, 2012
United States [Member]
Jun. 30, 2011
United States [Member]
Jun. 30, 2012
United States [Member]
Jun. 30, 2011
United States [Member]
Jun. 30, 2012
Foreign Subsidiaries [Member]
Jun. 30, 2011
Foreign Subsidiaries [Member]
Jun. 30, 2012
Foreign Subsidiaries [Member]
Jun. 30, 2011
Foreign Subsidiaries [Member]
Segment Information (Textual) [Abstract]                      
Percentage of sale based on net revenue       66.00% 71.00% 67.00% 76.00% 34.00% 29.00% 33.00% 24.00%
Countries representing > 10% of total net revenue       x x x x        
Long-lived assets outside of the United States   $ 542,000 $ 138,000         $ 381,000   $ 381,000  
Segment Information (Additional Textual) [Abstract]                      
Number of business segment 1