Revolving Credit Facility	9 Months Ended
Sep. 30, 2012
Revolving Credit Facility Disclosure [Abstract]
Revolving Credit Facility Disclosure [Text Block]	11. Revolving Credit Facility On August 7, 2009, the Company entered into an amended and restated $20.0 million revolving credit loan agreement with Bank of America, as agent, and Bank of America and Brown Brothers Harriman & Co as lenders. On September 30, 2011, the Company entered into the First Amendment to the Amended and Restated Revolving Credit Loan Agreement (the “First Amendment”) with Bank of America as agent, and Bank of America and Brown Brothers Harriman & Co as lenders. The First Amendment extended the maturity date of the credit facility to August 7, 2013 and reduced the interest rate to the London Interbank Offered Rate (“LIBOR”) plus 3.0%. On October 4, 2012, the Company entered into the Second Amendment to the Amended and Restated Revolving Credit Loan Agreement (the “Second Amendment”) with Bank of America as agent, and Bank of America and Brown Brothers Harriman & Co as lenders. The Second Amendment extends the maturity date of the credit facility to August 7, 2014 with no changes to other terms. At September 30, 2012, the interest rate for the facility was 3.22%. The amended and restated facility includes covenants relating to income, debt coverage and cash flow, as well as minimum working capital requirements. The credit facility also contains limitations on the Company's ability to incur additional indebtedness and requires lender approval for acquisitions funded with cash, promissory notes and/or other consideration in excess of $6.0 million and for acquisitions funded solely with equity in excess of $10.0 million. As of September 30, 2012 and December 31, 2011, the Company had borrowings of $15.3 million and $16.3 million, respectively, outstanding under its credit facility. The borrowings under the credit facility were primarily related to the acquisitions and stock repurchases. As of September 30, 2012, the Company was in compliance with all financial covenants contained in the credit facility; the Company was not subject to any borrowing restrictions under the financial covenants and had available borrowing capacity under our revolving credit facility of $4.7 million.

Revolving Credit Facility

9 Months Ended

Sep. 30, 2012

Revolving Credit Facility Disclosure [Abstract]

Revolving Credit Facility Disclosure [Text Block]

11. Revolving Credit Facility

On August 7, 2009, the Company entered into an amended and restated $20.0 million revolving credit loan agreement with Bank of America, as agent, and Bank of America and Brown Brothers Harriman & Co as lenders. On September 30, 2011, the Company entered into the First Amendment to the Amended and Restated Revolving Credit Loan Agreement (the “First Amendment”) with Bank of America as agent, and Bank of America and Brown Brothers Harriman & Co as lenders. The First Amendment extended the maturity date of the credit facility to August 7, 2013 and reduced the interest rate to the London Interbank Offered Rate (“LIBOR”) plus 3.0%. On October 4, 2012, the Company entered into the Second Amendment to the Amended and Restated Revolving Credit Loan Agreement (the “Second Amendment”) with Bank of America as agent, and Bank of America and Brown Brothers Harriman & Co as lenders. The Second Amendment extends the maturity date of the credit facility to August 7, 2014 with no changes to other terms. At September 30, 2012, the interest rate for the facility was 3.22%. The amended and restated facility includes covenants relating to income, debt coverage and cash flow, as well as minimum working capital requirements. The credit facility also contains limitations on the Company's ability to incur additional indebtedness and requires lender approval for acquisitions funded with cash, promissory notes and/or other consideration in excess of $6.0 million and for acquisitions funded solely with equity in excess of $10.0 million.

As of September 30, 2012 and December 31, 2011, the Company had borrowings of $15.3 million and $16.3 million, respectively, outstanding under its credit facility. The borrowings under the credit facility were primarily related to the acquisitions and stock repurchases. As of September 30, 2012, the Company was in compliance with all financial covenants contained in the credit facility; the Company was not subject to any borrowing restrictions under the financial covenants and had available borrowing capacity under our revolving credit facility of $4.7 million.