Subsequent Events (Narrative) (Details) - Subsequent event [Member] $ / shares in Units, $ in Thousands	Apr. 20, 2026 USD ($) $ / shares
Steute Industrial Controls, Inc. [Member]
Subsequent Event
Merger agreement termination fee	$ 1,000
Electro-Sensors, Inc. [Member]
Subsequent Event
Merger agreement termination fee	$ 1,000
Electro-Sensors, Inc. [Member] | Stock Options [Member]
Subsequent Event
Merger agreement cash out merger price per share | $ / shares	$ 7.75
Electro-Sensors, Inc. [Member] | Restricted stock units (“RSU”) [Member]
Subsequent Event
Merger agreement cash out merger price per share | $ / shares	7.75
Electro-Sensors, Inc. [Member] | Common Stock Issued [Member]
Subsequent Event
Merger agreement cash out merger price per share | $ / shares	$ 7.75
Electro-Sensors, Inc. [Member] | Maximum [Member]
Subsequent Event
Business Combination, Transaction Cost, Excluding Separately Recognized Transaction	$ 300
Electro-Sensors, Inc. [Member] | Steute Industrial Controls, Inc. [Member]
Subsequent Event
Merger agreement minimum unrestricted cash and cash equivalents	$ 10,250
Merger agreement minimum unrestricted cash and cash equivalents period prior to closing	10 days