Note 6 - Major Customers	3 Months Ended
Mar. 31, 2013
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	(6) MAJOR CUSTOMERS During the three months ended March 31, 2013, Hakuto Co., Ltd. accounted for 10% of our consolidated net revenues. These revenues were generated by our Thermal Products segment. During the three months ended March 31, 2012, Texas Instruments Incorporated accounted for 19% of our consolidated net revenues. While all three of our operating segments sold products to this customer, these revenues were primarily generated by our Mechanical Products segment. During the three months ended March 31, 2012, Teradyne, Inc. accounted for 13% of our consolidated net revenues. While both our Mechanical Products and our Electrical Products segments sold products to this customer, these revenues were primarily generated by our Electrical Products segment. No other customers accounted for 10% or more of our consolidated net revenues during the three months ended March 31, 2013 and 2012.

Note 6 - Major Customers

3 Months Ended

Mar. 31, 2013

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

(6) MAJOR CUSTOMERS

During the three months ended March 31, 2013, Hakuto Co., Ltd. accounted for 10% of our consolidated net revenues. These revenues were generated by our Thermal Products segment. During the three months ended March 31, 2012, Texas Instruments Incorporated accounted for 19% of our consolidated net revenues. While all three of our operating segments sold products to this customer, these revenues were primarily generated by our Mechanical Products segment. During the three months ended March 31, 2012, Teradyne, Inc. accounted for 13% of our consolidated net revenues. While both our Mechanical Products and our Electrical Products segments sold products to this customer, these revenues were primarily generated by our Electrical Products segment. No other customers accounted for 10% or more of our consolidated net revenues during the three months ended March 31, 2013 and 2012.