New Lease Obligation	9 Months Ended
Sep. 30, 2018
OPERATING LEASES [Abstract]
New Lease Obligation	14. NEW LEASE OBLIGATION: We lease a 50,724 square foot mixed office and warehouse facility built to our specifications in Golden Valley, Minnesota, which functions as our corporate headquarters and primary manufacturing facility for our sensor and semiconductor products. We also lease a 10,165 square foot facility in Bloomington, Minnesota, the term of which expires on December 31, 2018. In May 2018, we finalized an amendment to the lease for our current Golden Valley, Minnesota facility that will become effective on January 1, 2019. The amendment provides that we will lease 61,208 square feet of space in our current facility in Golden Valley, Minnesota through July 31, 2026 (prior to the amendment, the lease provided for an expiration date of December 31, 2018). The increase in the size of the facility will allow us to conduct the operations currently carried out at our Bloomington, Minnesota facility in our current Golden Valley, Minnesota location. Future lease payments due under the amended lease for the period from January 1, 2019 through July 31, 2026, are approximately $7.9 million. We anticipate that our annual rental payments will increase by approximately $200,000 when the lease amendment becomes effective in January 2019.

New Lease Obligation

9 Months Ended

Sep. 30, 2018

14. NEW LEASE OBLIGATION:

We lease a 50,724 square foot mixed office and warehouse facility built to our specifications in Golden Valley, Minnesota, which functions as our corporate headquarters and primary manufacturing facility for our sensor and semiconductor products. We also lease a 10,165 square foot facility in Bloomington, Minnesota, the term of which expires on December 31, 2018. In May 2018, we finalized an amendment to the lease for our current Golden Valley, Minnesota facility that will become effective on January 1, 2019. The amendment provides that we will lease 61,208 square feet of space in our current facility in Golden Valley, Minnesota through July 31, 2026 (prior to the amendment, the lease provided for an expiration date of December 31, 2018). The increase in the size of the facility will allow us to conduct the operations currently carried out at our Bloomington, Minnesota facility in our current Golden Valley, Minnesota location. Future lease payments due under the amended lease for the period from January 1, 2019 through July 31, 2026, are approximately $7.9 million. We anticipate that our annual rental payments will increase by approximately $200,000 when the lease amendment becomes effective in January 2019.