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Divestiture	12 Months Ended
Divestiture	Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Divestiture	Divestiture Sale of SureCheck During the second quarter of 2019, ParTech entered into an asset purchase agreement to sell substantially all of the assets relating to the SureCheck product line within the Company's Restaurant/Retail segment. The sale did not qualify for treatment as a discontinued operation, and therefore, the SureCheck product line is included in the Company’s operations for all periods presented.