MTI Instruments sells its products on a worldwide basis with its principal markets listed in the table below where information on product revenue is summarized by geographic area for the Company as a whole for each of the years ended December 31: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Product revenue	$ 7,147	$ 9,004	[1]
Total product revenue	7,147	9,004
UNITED STATES
Product revenue	4,582	6,670
A S E A N [Member]
Product revenue	1,864	1,510
EMEA [Member]
Product revenue	576	713
CANADA
Product revenue	$ 125	$ 111

[1] Reclassified to conform with the current period presentation