Borrowings	12 Months Ended
Dec. 31, 2011
Borrowings [Abstract]
Borrowings	Note 10. Borrowings United States On May 2, 2011, the Company, its domestic subsidiaries, and certain Canadian subsidiaries entered into a new $125,000,000 Revolving Credit Facility Credit Agreement (Credit Agreement) with PNC Bank, N.A., Bank of America, N.A., Wells Fargo Bank, N.A. and Citizens Bank of Pennsylvania. This Credit Agreement replaced a prior revolving credit facility with a maximum credit line of $90,000,000 and a $20,000,000 term loan. The Credit Agreement provides for a five-year, unsecured revolving credit facility that permits borrowing up to $125,000,000 for the U.S. borrowers and a sublimit of the equivalent of $15,000,000 U.S. dollars that is available to the Canadian borrowers. Providing no event of default exists, the Credit Agreement contains a provision that provides for an increase in the revolver facility of $50,000,000 that can be allocated to existing or new lenders if the Company's borrowing requirements should grow. The Credit Agreement includes a sublimit of $20,000,000 for the issuance of trade and standby letters of credit. Borrowings under the Credit Agreement will bear interest at rates based upon either the base rate or LIBOR based rate plus applicable margins. Applicable margins are dictated by the ratio of the Company's Indebtedness less cash on hand to the Company's consolidated EBITDA, as defined in the underlying Credit Agreement. The base rate is the highest of (a) PNC Bank's prime rate, (b) the Federal Funds Rate plus .50% or (c) the daily LIBOR, as defined in the underlying Credit Agreement, rate plus 1.00%. The base rate spread ranges from 0.00% to 1.00%. LIBOR based rates are determined by dividing the published LIBOR rate by a number equal to 1.00 minus the percentage prescribed by the Federal Reserve for determining the maximum reserve requirements with respect to any Eurocurrency funding by banks on such day. The LIBOR based rate spread ranges from 1.00% to 2.00%. The Credit Agreement includes two financial covenants: (a) the Leverage Ratio, defined as the Company's Indebtedness less cash on hand divided by the Company's consolidated EBITDA, which must not exceed 3.00 to 1.00 and (b) Minimum Interest Coverage, defined as consolidated EBITDA less Capital Expenditures divided by consolidated interest expense, which must be no less than 3.00 to 1.00. The Credit Agreement contains certain limitations regarding share repurchases, dividends, loans to other parties, and other activities when borrowings are outstanding. The Company is permitted to acquire the stock or assets of other entities with limited restrictions providing that the Leverage Ratio does not exceed 2.50 to 1.00 after giving effect to the acquisition. Other restrictions exist at all times including, but not limited to, limitation of the Company's sale of assets, other indebtedness incurred by either the borrowers or the non-borrower subsidiaries of the Company, guaranties, and liens. As of December 31, 2011, the Company was in compliance with the Agreement's covenants. The Company had no outstanding borrowings under the revolving credit facility at December 31, 2011 and had available borrowing capacity of $123,896,000. The Company had no outstanding borrowings at December 31, 2010, under the prior revolving credit facility or prior term loan. United Kingdom A subsidiary of the Company has a working capital facility with NatWest Bank for its United Kingdom operations which includes an overdraft availability of £1,500,000 pounds sterling (approximately $2,331,000 at December 31, 2011). This credit facility supports the working capital requirements and is collateralized by substantially all of the assets of its United Kingdom operations. The interest rate on this facility is the financial institution's base rate plus 1.50%. Outstanding performance bonds reduce availability under this credit facility. There were no borrowings or performance bonds outstanding on this facility as of December 31, 2011 or 2010. The expiration date of this credit facility is June 30, 2012. The United Kingdom loan agreements contain certain financial covenants that require it to maintain senior interest and cash flow coverage ratios. The subsidiary was in compliance with these financial covenants as of December 31, 2011. Letters of Credit At December 31, 2011 the Company had outstanding letters of credit of approximately $1,104,000.

Note 10.

Borrowings

United States

On May 2, 2011, the Company, its domestic subsidiaries, and certain Canadian subsidiaries entered into a new $125,000,000 Revolving Credit Facility Credit Agreement (Credit Agreement) with PNC Bank, N.A., Bank of America, N.A., Wells Fargo Bank, N.A. and Citizens Bank of Pennsylvania. This Credit Agreement replaced a prior revolving credit facility with a maximum credit line of $90,000,000 and a $20,000,000 term loan. The Credit Agreement provides for a five-year, unsecured revolving credit facility that permits borrowing up to $125,000,000 for the U.S. borrowers and a sublimit of the equivalent of $15,000,000 U.S. dollars that is available to the Canadian borrowers. Providing no event of default exists, the Credit Agreement contains a provision that provides for an increase in the revolver facility of $50,000,000 that can be allocated to existing or new lenders if the Company's borrowing requirements should grow. The Credit Agreement includes a sublimit of $20,000,000 for the issuance of trade and standby letters of credit.

Borrowings under the Credit Agreement will bear interest at rates based upon either the base rate or LIBOR based rate plus applicable margins. Applicable margins are dictated by the ratio of the Company's Indebtedness less cash on hand to the Company's consolidated EBITDA, as defined in the underlying Credit Agreement. The base rate is the highest of (a) PNC Bank's prime rate, (b) the Federal Funds Rate plus .50% or (c) the daily LIBOR, as defined in the underlying Credit Agreement, rate plus 1.00%. The base rate spread ranges from 0.00% to 1.00%. LIBOR based rates are determined by dividing the published LIBOR rate by a number equal to 1.00 minus the percentage prescribed by the Federal Reserve for determining the maximum reserve requirements with respect to any Eurocurrency funding by banks on such day. The LIBOR based rate spread ranges from 1.00% to 2.00%.

The Credit Agreement includes two financial covenants: (a) the Leverage Ratio, defined as the Company's Indebtedness less cash on hand divided by the Company's consolidated EBITDA, which must not exceed 3.00 to 1.00 and (b) Minimum Interest Coverage, defined as consolidated EBITDA less Capital Expenditures divided by consolidated interest expense, which must be no less than 3.00 to 1.00.

The Credit Agreement contains certain limitations regarding share repurchases, dividends, loans to other parties, and other activities when borrowings are outstanding. The Company is permitted to acquire the stock or assets of other entities with limited restrictions providing that the Leverage Ratio does not exceed 2.50 to 1.00 after giving effect to the acquisition.

Other restrictions exist at all times including, but not limited to, limitation of the Company's sale of assets, other indebtedness incurred by either the borrowers or the non-borrower subsidiaries of the Company, guaranties, and liens.

As of December 31, 2011, the Company was in compliance with the Agreement's covenants.

The Company had no outstanding borrowings under the revolving credit facility at December 31, 2011 and had available borrowing capacity of $123,896,000. The Company had no outstanding borrowings at December 31, 2010, under the prior revolving credit facility or prior term loan.

United Kingdom

A subsidiary of the Company has a working capital facility with NatWest Bank for its United Kingdom operations which includes an overdraft availability of £1,500,000 pounds sterling (approximately $2,331,000 at December 31, 2011). This credit facility supports the working capital requirements and is collateralized by substantially all of the assets of its United Kingdom operations. The interest rate on this facility is the financial institution's base rate plus 1.50%. Outstanding performance bonds reduce availability under this credit facility. There were no borrowings or performance bonds outstanding on this facility as of December 31, 2011 or 2010. The expiration date of this credit facility is June 30, 2012.

The United Kingdom loan agreements contain certain financial covenants that require it to maintain senior interest and cash flow coverage ratios. The subsidiary was in compliance with these financial covenants as of December 31, 2011.

Letters of Credit

At December 31, 2011 the Company had outstanding letters of credit of approximately $1,104,000.