Note 8 - Debt	3 Months Ended
Mar. 31, 2012
Debt Disclosure [Text Block]	(8) DEBT Letters of Credit At each of March 31, 2012 and December 31, 2011, we had an outstanding letter of credit in the amount of $50. This letter of credit is secured by a pledged certificate of deposit in the amount of $50. This letter of credit was originally issued in September 2004 as a portion of the security deposit under a lease that we entered into for a facility for our Electrical Products operation based in northern California. This letter of credit expires September 13, 2012. The terms of the lease require that the letter of credit be renewed at least thirty days prior to its expiration date for successive terms of not less than one year until June 30, 2012, which is sixty days after the expiration of the lease term. At each of March 31, 2012 and December 31, 2011, we had an outstanding letter of credit in the amount of $250. This letter of credit is secured by a pledged certificate of deposit in the amount of $250. This letter of credit was originally issued in April 2010 as a security deposit under a lease that we entered into for a facility in Mt. Laurel, New Jersey. Our Mechanical Products operation, which was located in Cherry Hill, New Jersey on December 31, 2010, relocated to this smaller facility in Mt. Laurel, New Jersey during the first quarter of 2011. This letter of credit expires April 1, 2013; however, the terms of the lease require that the letter of credit be renewed at least thirty days prior to its expiration date for successive terms of not less than one year throughout the entire lease term, which ends April 30, 2021. Provided that there is no event of default as defined under the terms and conditions of the lease, the required amount of the letter of credit will decrease to $125 as of the sixty-fourth month of the term of the lease and to $90 as of the one-hundredth month of the term of the lease. At each of March 31, 2012 and December 31, 2011, we had an outstanding letter of credit in the amount of $200. This letter of credit is secured by a pledged certificate of deposit in the amount of $200. This letter of credit was originally issued in November 2010 as a security deposit under a lease that we entered into for a facility in Mansfield, Massachusetts. Our Thermal Products operation, which was located in Sharon, Massachusetts on December 31, 2010, relocated to this facility in Mansfield, Massachusetts during the first quarter of 2011. This letter of credit expires November 7, 2012; however, the terms of the lease require that the letter of credit be renewed at least thirty days prior to its expiration date for successive terms of not less than one year throughout the entire lease term, which ends August 23, 2021. Provided that there is no event of default as defined under the terms and conditions of the lease, the required amount of the letter of credit will decrease to $100 as of the thirty-seventh month of the term of the lease and to $50 as of the sixty-first month of the term of the lease.

Note 8 - Debt

3 Months Ended

Mar. 31, 2012

(8) DEBT

Letters of Credit

At each of March 31, 2012 and December 31, 2011, we had an outstanding letter of credit in the amount of $50. This letter of credit is secured by a pledged certificate of deposit in the amount of $50. This letter of credit was originally issued in September 2004 as a portion of the security deposit under a lease that we entered into for a facility for our Electrical Products operation based in northern California. This letter of credit expires September 13, 2012. The terms of the lease require that the letter of credit be renewed at least thirty days prior to its expiration date for successive terms of not less than one year until June 30, 2012, which is sixty days after the expiration of the lease term.

At each of March 31, 2012 and December 31, 2011, we had an outstanding letter of credit in the amount of $250. This letter of credit is secured by a pledged certificate of deposit in the amount of $250. This letter of credit was originally issued in April 2010 as a security deposit under a lease that we entered into for a facility in Mt. Laurel, New Jersey. Our Mechanical Products operation, which was located in Cherry Hill, New Jersey on December 31, 2010, relocated to this smaller facility in Mt. Laurel, New Jersey during the first quarter of 2011. This letter of credit expires April 1, 2013; however, the terms of the lease require that the letter of credit be renewed at least thirty days prior to its expiration date for successive terms of not less than one year throughout the entire lease term, which ends April 30, 2021. Provided that there is no event of default as defined under the terms and conditions of the lease, the required amount of the letter of credit will decrease to $125 as of the sixty-fourth month of the term of the lease and to $90 as of the one-hundredth month of the term of the lease.

At each of March 31, 2012 and December 31, 2011, we had an outstanding letter of credit in the amount of $200. This letter of credit is secured by a pledged certificate of deposit in the amount of $200. This letter of credit was originally issued in November 2010 as a security deposit under a lease that we entered into for a facility in Mansfield, Massachusetts. Our Thermal Products operation, which was located in Sharon, Massachusetts on December 31, 2010, relocated to this facility in Mansfield, Massachusetts during the first quarter of 2011. This letter of credit expires November 7, 2012; however, the terms of the lease require that the letter of credit be renewed at least thirty days prior to its expiration date for successive terms of not less than one year throughout the entire lease term, which ends August 23, 2021. Provided that there is no event of default as defined under the terms and conditions of the lease, the required amount of the letter of credit will decrease to $100 as of the thirty-seventh month of the term of the lease and to $50 as of the sixty-first month of the term of the lease.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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