Notes Payable	9 Months Ended
Sep. 30, 2014
Debt Disclosure [Abstract]
Notes Payable	6. Notes Payable Revolving Credit Agreement On November 30, 2013, the Company entered into a $10 million Amended and Restated Credit Agreement with JP Morgan Chase Bank, N.A. (“Chase”). The agreement replaced in its entirety the Company’s prior credit agreement, as amended, originally entered into with Chase in October of 2007. The 2013 agreement had a maturity date of October 1, 2015. Under the agreement, the credit facility’s interest rate is London Interbank Offered Rate (“LIBOR”) (0.15% at September 30, 2014) plus 3.25% per annum and a commitment fee of 0.3% per annum on the unused portion of the credit limit each quarter. The 2013 agreement provides for usual and customary covenants and restrictions including that the borrower must maintain a fixed charge coverage ratio of no less than 1.25 to 1.00, and will not permit the ratio of consolidated total liabilities to consolidated net worth to exceed 1.00. Additionally, the borrower will not permit, at the end of each calendar quarter, for its net income for the most recently ended six month period to be less than $1.00. Effective June 30, 2014 the Company and JP Morgan Chase Bank N.A. amended the 2013 credit agreement to exclude the impact of the AAT discontinued operations and anticipated sale of that segment from the calculation of the net income covenant. On November 12, 2014 the Company entered into an amendment with JP Morgan Chase Bank N.A which extended the maturity of the facility to October 1, 2017. Additionally, the amendment modified the interest rate to LIBOR plus 3.00% per annum and the commitment fee to 0.4% per annum for the unused portion of the credit limit each quarter. The amendment provided for the exclusion of up to $4.9 million of capital expenditures related to the Company’s Beaumont facility expansion from the fixed charge coverage ratio. The amendment also waived the $1.00 net income requirement for the period ended September 30, 2014 and modified the requirement at December 31, 2014 to be calculated using only the most recent three month period. The agreement is collateralized by the Company’s real estate in Beaumont, Texas, trade accounts receivable, equipment, inventories, work-in-progress and investments in foreign subsidiaries, and the Company’s U.S. subsidiaries are guarantors of the borrowing. The Company has $0.5 million of borrowings outstanding under the JP Morgan Chase N.A. credit agreement at September 30, 2014 and $0.5 million at December 31, 2013. The Company had additional borrowing capacity of $5.7 million and $7.9 million at September 30, 2014 and December 31, 2013 respectively. In conjunction with the facility expansion at Beaumont completed in June 2014, interest was capitalized at the 30 day LIBOR rate plus 3.25% per annum. Interest capitalized for nine months ending September 30, 2014 and 2013 was $18,000 and none respectively and none was capitalized for the three months ended September 30, 2014 and 2013.

6. Notes Payable

Revolving Credit Agreement

On November 30, 2013, the Company entered into a $10 million Amended and Restated Credit Agreement with JP Morgan Chase Bank, N.A. (“Chase”). The agreement replaced in its entirety the Company’s prior credit agreement, as amended, originally entered into with Chase in October of 2007.

The 2013 agreement had a maturity date of October 1, 2015. Under the agreement, the credit facility’s interest rate is London Interbank Offered Rate (“LIBOR”) (0.15% at September 30, 2014) plus 3.25% per annum and a commitment fee of 0.3% per annum on the unused portion of the credit limit each quarter. The 2013 agreement provides for usual and customary covenants and restrictions including that the borrower must maintain a fixed charge coverage ratio of no less than 1.25 to 1.00, and will not permit the ratio of consolidated total liabilities to consolidated net worth to exceed 1.00. Additionally, the borrower will not permit, at the end of each calendar quarter, for its net income for the most recently ended six month period to be less than $1.00. Effective June 30, 2014 the Company and JP Morgan Chase Bank N.A. amended the 2013 credit agreement to exclude the impact of the AAT discontinued operations and anticipated sale of that segment from the calculation of the net income covenant.

On November 12, 2014 the Company entered into an amendment with JP Morgan Chase Bank N.A which extended the maturity of the facility to October 1, 2017. Additionally, the amendment modified the interest rate to LIBOR plus 3.00% per annum and the commitment fee to 0.4% per annum for the unused portion of the credit limit each quarter. The amendment provided for the exclusion of up to $4.9 million of capital expenditures related to the Company’s Beaumont facility expansion from the fixed charge coverage ratio. The amendment also waived the $1.00 net income requirement for the period ended September 30, 2014 and modified the requirement at December 31, 2014 to be calculated using only the most recent three month period.

The agreement is collateralized by the Company’s real estate in Beaumont, Texas, trade accounts receivable, equipment, inventories, work-in-progress and investments in foreign subsidiaries, and the Company’s U.S. subsidiaries are guarantors of the borrowing.

The Company has $0.5 million of borrowings outstanding under the JP Morgan Chase N.A. credit agreement at September 30, 2014 and $0.5 million at December 31, 2013. The Company had additional borrowing capacity of $5.7 million and $7.9 million at September 30, 2014 and December 31, 2013 respectively.

In conjunction with the facility expansion at Beaumont completed in June 2014, interest was capitalized at the 30 day LIBOR rate plus 3.25% per annum. Interest capitalized for nine months ending September 30, 2014 and 2013 was $18,000 and none respectively and none was capitalized for the three months ended September 30, 2014 and 2013.