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Revenue Recognition (Tables) | 6 Months Ended
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Jun. 30, 2020
Revenue from Contract with Customer [Abstract] |
Schedule of Performance Obligations | The activity of outstanding performance obligations as is relates to customer deposits and deferred service revenue is as follows:
(in thousands) | 2020 | 2019
Beginning balance - January 1 | $ | 16,000 |  | $ | 14,134 |
Change in deferred revenue | (430) |  | (327) |
Changes in customer deposits | (2,008) |  | 1,272 |
Ending balance - June 30 | $ | 13,562 |  | $ | 15,079 |
The value of existing contracts, net of amounts relating to work performed to that date are expected to be recognized as revenue over time as follows (in thousands):
Next 12 Months | $ | 56,458 |
Months 13-24 | 32,644 |
Months 25-36 | 24,821 |
Thereafter | 15,690 |
TOTAL | $ | 129,613 |
Schedule of Disaggregated Revenue | Disaggregation of revenue for the three and six months ended June 30, 2020 and June 30, 2019 is as follows:
(in thousands) | Three months ended June 30, 2020 |  |
| Restaurant/Retail - Point in Time | Restaurant/Retail - Over Time | Government - Over Time
Restaurant/Retail | $ | 19,820 |  | $ | 7,813 |  | $ | — |
Mission Systems | $ | — |  | $ | — |  | $ | 8,087 |
ISR Solutions | $ | — |  | $ | — |  | $ | 9,971 |
TOTAL | $ | 19,820 |  | $ | 7,813 |  | $ | 18,058 |
(in thousands) | Three months ended June 30, 2019 |  |
| Restaurant/Retail - Point in Time | Restaurant/Retail - Over Time | Government - Over Time
Restaurant/Retail | $ | 21,503 |  | $ | 5,829 |  | $ | — |
Grocery | 283 |  | 647 |  | — |
Mission Systems | — |  | — |  | 8,192 |
ISR Solutions | — |  | — |  | 7,793 |
TOTAL | $ | 21,786 |  | $ | 6,476 |  | $ | 15,985 |
(in thousands) | Six months ended June 30, 2020 |  |
| Restaurant/Retail - Point in Time | Restaurant/Retail - Over Time | Government - Over Time
Restaurant/Retail | $ | 47,635 |  | $ | 17,407 |  | $ | — |
Mission Systems | — |  | — |  | 16,535 |
ISR Solutions | — |  | — |  | 18,846 |
TOTAL | $ | 47,635 |  | $ | 17,407 |  | $ | 35,381 |
(in thousands) | Six months ended June 30, 2019 |  |
| Restaurant/Retail - Point in Time | Restaurant/Retail - Over Time | Government - Over Time
Restaurant/Retail | $ | 43,880 |  | $ | 11,579 |  | $ | — |
Grocery | 732 |  | 1,631 |  | — |
Mission Systems | — |  | — |  | 16,738 |
ISR Solutions | — |  | — |  | 14,369 |
TOTAL | $ | 44,612 |  | $ | 13,210 |  | $ | 31,107 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of expected timing for satisfying remaining performance obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045 + Details
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