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Notes Payable	3 Months Ended
Mar. 31, 2013
Notes Payable [Abstract]
Notes Payable	6. Notes Payable *Revolving Credit Agreement* The Company entered into a $10.0 million credit agreement with JP Morgan Chase Bank, N.A. (“Chase”) in October 2007. At March 31, 2013 and December 31, 2012 there was $0.5 million of borrowings outstanding. There was additional borrowing capacity of $8.9 million at March 31, 2013. On August 10, 2012 the $10.0 million credit agreement was amended which extended the maturity date to July 1, 2014, modified the financial covenants to a net profitability test of $1 on a trailing six months basis, and a 1.0 to 1.0 leverage test for total liabilities to total net worth. The current ratio test remains unchanged at a minimum of 2.0 to 1.0. The agreement is collateralized by the Company’s real estate in Houston and Beaumont, Texas, trade accounts receivable, equipment, inventories, and work-in-progress, and the Company’s U.S. subsidiaries are guarantors of the borrowings. Under the agreement, the credit facility’s interest rate is LIBOR plus 3.25% per annum and a commitment fee of 0.3% per annum of the unused portion of the credit limit each quarter. Additionally, the terms of the agreement contains covenants which provide for customary restrictions and limitations and restriction from paying dividends without prior written consent of the bank. On May 1, 2012 the Company and Chase executed a consent and amendment to the credit agreement to allow for the $5.0 million convertible preferred stock transaction as discussed in Note 10.

Notes Payable

3 Months Ended

Mar. 31, 2013

6. Notes Payable

Revolving Credit Agreement

The Company entered into a $10.0 million credit agreement with JP Morgan Chase Bank, N.A. (“Chase”) in October 2007. At March 31, 2013 and December 31, 2012 there was $0.5 million of borrowings outstanding. There was additional borrowing capacity of $8.9 million at March 31, 2013.

On August 10, 2012 the $10.0 million credit agreement was amended which extended the maturity date to July 1, 2014, modified the financial covenants to a net profitability test of $1 on a trailing six months basis, and a 1.0 to 1.0 leverage test for total liabilities to total net worth. The current ratio test remains unchanged at a minimum of 2.0 to 1.0. The agreement is collateralized by the Company’s real estate in Houston and Beaumont, Texas, trade accounts receivable, equipment, inventories, and work-in-progress, and the Company’s U.S. subsidiaries are guarantors of the borrowings.

Under the agreement, the credit facility’s interest rate is LIBOR plus 3.25% per annum and a commitment fee of 0.3% per annum of the unused portion of the credit limit each quarter. Additionally, the terms of the agreement contains covenants which provide for customary restrictions and limitations and restriction from paying dividends without prior written consent of the bank. On May 1, 2012 the Company and Chase executed a consent and amendment to the credit agreement to allow for the $5.0 million convertible preferred stock transaction as discussed in Note 10.