RELATED-PARTY TRANSACTIONS	12 Months Ended
Dec. 31, 2017
RELATED-PARTY TRANSACTIONS [Abstract]
RELATED-PARTY TRANSACTIONS	NOTE K – RELATED-PARTY TRANSACTIONS The Company accounts for its investment in VSK using the equity method. At December 31, 2017, the Company had contributed capital of $522,000 to VSK, and had an amount due to VSK of $378,000, net. The Company’s pro-rata share in VSK’s loss from operations approximated $20,000 for the year ended December 31, 2017, and is included in interest and other income (expense), net in the accompanying consolidated statements of operations and comprehensive (loss) income. In March 2018, the Company sold its interest in VSK (see Note R). David Lieberman, a practicing attorney in the State of New York, serves as Vice Chairman of the Board of Directors. He is currently a senior partner at the law firm of Beckman, Lieberman & Barandes, LLP, which performs certain legal services for the Company. Fees of approximately $340,000 were billed by the firm for each of the years ended December 31, 2017 and 2016, at which dates no amounts were outstanding. On August 6, 2014 the Company acquired all of the outstanding shares of Genwell Instruments Co. Ltd. (“Genwell”), located in Wuxi, China for cash and notes of Chinese Yuan RMB13,250,000 (approximately $2,151,000 at the acquisition date). The Company issued the RMB6,250,000 note as part of the acquisition payment and, in May 2015, modified the note to change the interest rate from 5% to 9% per annum, effective August 28, 2015, and to extend the maturity date from August 26, 2015 to August 26, 2019. In July 2017 and October 2017, the Company made partial principal payments aggregating RMB2,250,000 (approximately $335,000), plus accrued interest, on notes payable to the president of LET and the president of Biox. Unsecured notes and accrued interest aggregating approximately $354,000, and $663,000 was payable to officers of Biox at December 31, 2017 and 2016, respectively.

NOTE K – RELATED-PARTY TRANSACTIONS

The Company accounts for its investment in VSK using the equity method. At December 31, 2017, the Company had contributed capital of $522,000 to VSK, and had an amount due to VSK of $378,000, net. The Company’s pro-rata share in VSK’s loss from operations approximated $20,000 for the year ended December 31, 2017, and is included in interest and other income (expense), net in the accompanying consolidated statements of operations and comprehensive (loss) income. In March 2018, the Company sold its interest in VSK (see Note R).

David Lieberman, a practicing attorney in the State of New York, serves as Vice Chairman of the Board of Directors. He is currently a senior partner at the law firm of Beckman, Lieberman & Barandes, LLP, which performs certain legal services for the Company. Fees of approximately $340,000 were billed by the firm for each of the years ended December 31, 2017 and 2016, at which dates no amounts were outstanding.

On August 6, 2014 the Company acquired all of the outstanding shares of Genwell Instruments Co. Ltd. (“Genwell”), located in Wuxi, China for cash and notes of Chinese Yuan RMB13,250,000 (approximately $2,151,000 at the acquisition date). The Company issued the RMB6,250,000 note as part of the acquisition payment and, in May 2015, modified the note to change the interest rate from 5% to 9% per annum, effective August 28, 2015, and to extend the maturity date from August 26, 2015 to August 26, 2019. In July 2017 and October 2017, the Company made partial principal payments aggregating RMB2,250,000 (approximately $335,000), plus accrued interest, on notes payable to the president of LET and the president of Biox. Unsecured notes and accrued interest aggregating approximately $354,000, and $663,000 was payable to officers of Biox at December 31, 2017 and 2016, respectively.