Subsequent Event	12 Months Ended
Dec. 31, 2012
Subsequent Events [Abstract]
Subsequent Events [Text Block]	20. Subsequent Event On April 12, 2013, the Company entered into Amendment No. 4 to the Credit Agreement among the Company and BMO Harris Bank N.A. (the “Bank”) (the “Credit Agreement Amendment”) and also entered into Amendment No. 1 to the Note and Warrant Purchase Agreement among the Company and BMO Private Equity (U.S.) (the “NWPA Agreement Amendment”). In the Credit Agreement Amendment, the Bank, and in the NWPA Agreement Amendment, the Fund, waives defaults by the Company as of December 31, 2012 and March 31, 2013 with respect to certain financial covenants in the agreement relating to the Senior Leverage Ratio and Total Leverage Ratio. In addition, the levels of these financial covenants for June 30, 2013 and subsequent quarters during the term of the agreements are revised. Management believes that the Company will comply with these financial covenants, as revised, for the next 12 months.

Subsequent Event

12 Months Ended

Dec. 31, 2012

20. Subsequent Event

On April 12, 2013, the Company entered into Amendment No. 4 to the Credit Agreement among the Company and BMO Harris Bank N.A. (the “Bank”) (the “Credit Agreement Amendment”) and also entered into Amendment No. 1 to the Note and Warrant Purchase Agreement among the Company and BMO Private Equity (U.S.) (the “NWPA Agreement Amendment”).

In the Credit Agreement Amendment, the Bank, and in the NWPA Agreement Amendment, the Fund, waives defaults by the Company as of December 31, 2012 and March 31, 2013 with respect to certain financial covenants in the agreement relating to the Senior Leverage Ratio and Total Leverage Ratio. In addition, the levels of these financial covenants for June 30, 2013 and subsequent quarters during the term of the agreements are revised. Management believes that the Company will comply with these financial covenants, as revised, for the next 12 months.