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Segment and Related Information - Reconciliation of Segment Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Identifiable assets by geographic area [Abstract] |  |
Identifiable assets | $ 152,569 | $ 94,681
Goodwill by business segment [Abstract] |  |
Goodwill | 13,418 | 11,051
Restaurant/Retail |  |
Goodwill by business segment [Abstract] |  |
Goodwill | 13,400 | 13,400
Government |  |
Goodwill by business segment [Abstract] |  |
Goodwill | 11,100 | 11,100
Operating segments | Restaurant/Retail |  |
Identifiable assets by geographic area [Abstract] |  |
Identifiable assets | 79,585 | 68,004
Goodwill by business segment [Abstract] |  |
Goodwill | 12,682 | 10,315
Operating segments | Government |  |
Identifiable assets by geographic area [Abstract] |  |
Identifiable assets | 12,866 | 9,867
Goodwill by business segment [Abstract] |  |
Goodwill | 736 | 736
Reportable geographical components | United States |  |
Identifiable assets by geographic area [Abstract] |  |
Identifiable assets | 143,021 | 84,652
Reportable geographical components | Other Countries |  |
Identifiable assets by geographic area [Abstract] |  |
Identifiable assets | 9,548 | 10,029
Other |  |
Identifiable assets by geographic area [Abstract] |  |
Identifiable assets | $ 60,118 | $ 16,810

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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