Subsequent Events	12 Months Ended
Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	(14) Subsequent Events As discussed in Note 3, the Line of Credit Agreement with our primary bank (Libertyville) was to expire on March 4, 2017, but during February 2017 this agreement was further extended to March 2018. As discussed in Note 6, during March 2017 we entered into a new Building Lease for our Burr Ridge facility. The previous lease expires September 2017, at which time this new lease will begin, and extend through September 2021. We have the option to further extend this lease by up to three additional one year periods. As discussed in Note 6, during January 2017 we paid $60 to retire a capital lease related to equipment that we sold to a third party for $100, its remaining book value. No gain or loss was recognized during 2017 associated with the transaction.

Subsequent Events

12 Months Ended

Dec. 31, 2016

(14) Subsequent Events

As discussed in Note 3, the Line of Credit Agreement with our primary bank (Libertyville) was to expire on March 4, 2017, but during February 2017 this agreement was further extended to March 2018.

As discussed in Note 6, during March 2017 we entered into a new Building Lease for our Burr Ridge facility. The previous lease expires September 2017, at which time this new lease will begin, and extend through September 2021. We have the option to further extend this lease by up to three additional one year periods.

As discussed in Note 6, during January 2017 we paid $60 to retire a capital lease related to equipment that we sold to a third party for $100, its remaining book value. No gain or loss was recognized during 2017 associated with the transaction.