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Revenues | 6 Months Ended
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Jun. 30, 2019
Revenues Disclosure [Abstract] |
Revenues | 17. Revenues The following table represents a disaggregation of revenue from contracts with customers. Revenue from continuing operations originating from the following geographic areas for the six months ended June 30, 2019 and 2018 consist of:
| Three Months Ended June 30, 2019
|  | (in thousands)
| United States |  | United Kingdom |  | Germany |  | Rest of the world |  | Total
Instruments, equipment, software and accessories | $ | 20,920 |  | $ | 2,399 |  | $ | 3,271 |  | $ | 1,753 |  | $ | 28,343
Service, maintenance and warranty contracts |  | 910 |  |  | 236 |  |  | 79 |  |  | 16 |  |  | 1,241
Total revenues | $ | 21,830 |  | $ | 2,635 |  | $ | 3,350 |  | $ | 1,769 |  | $ | 29,584
| Three Months Ended June 30, 2018
|  | (in thousands)
| United States |  | United Kingdom |  | Germany |  | Rest of the world |  | Total
Instruments, equipment, software and accessories | $ | 20,478 |  | $ | 4,058 |  | $ | 3,316 |  | $ | 2,156 |  | $ | 30,008
Service, maintenance and warranty contracts |  | 1,204 |  |  | 168 |  |  | 129 |  |  | 13 |  |  | 1,514
Total revenues | $ | 21,682 |  | $ | 4,226 |  | $ | 3,445 |  | $ | 2,169 |  | $ | 31,522
| Six Months Ended June 30, 2019
|  | (in thousands)
| United States |  | United Kingdom |  | Germany |  | Rest of the world |  | Total
Instruments, equipment and accessories | $ | 39,591 |  | $ | 5,528 |  | $ | 6,184 |  | $ | 3,798 |  | $ | 55,101
Service, maintenance and warranty contracts |  | 2,053 |  |  | 426 |  |  | 176 |  |  | 30 |  |  | 2,685
Total revenues | $ | 41,644 |  | $ | 5,954 |  | $ | 6,360 |  | $ | 3,828 |  | $ | 57,786
| Six Months Ended June 30, 2018
|  | (in thousands)
| United States |  | United Kingdom |  | Germany |  | Rest of the world |  | Total
Instruments, equipment and accessories | $ | 36,695 |  | $ | 7,587 |  | $ | 7,006 |  | $ | 4,400 |  | $ | 55,688
Service, maintenance and warranty contracts |  | 2,030 |  |  | 334 |  |  | 198 |  |  | 31 |  |  | 2,593
Total revenues | $ | 38,725 |  | $ | 7,921 |  | $ | 7,204 |  | $ | 4,431 |  | $ | 58,281
Deferred revenue As of June 30, 2019 and December 31, 2018, the Company had approximately $3.5 million and $3.8 million, respectively, in deferred revenue comprised of revenue deferred from service contracts and revenue deferred from advance payments. Changes in defe r r ed revenue from service contracts and advance payments from customers during the six months ended June 30, 2019 and 2018 were as follows:
| Three Months Ended June 30, 2019
| (in thousands)
| Service Contracts |  | Customer Advances |  | Total
Balance at March 31, 2019 | $ | 1,666 |  | $ | 2,049 |  | $ | 3,715
Deferral of revenue |  | 281 |  |  | 140 |  |  | 421
Recognition of deferred revenue |  | (344) |  |  | (250) |  |  | (594)
Effect of foreign currency translation |  | (10) |  |  | - |  |  | (10)
Balance at June 30, 2019 | $ | 1,593 |  | $ | 1,939 |  | $ | 3,532
| Three Months Ended June 30, 2018
| (in thousands)
| Service Contracts |  | Customer Advances |  | Total
Balance at March 31, 2018 | $ | 1,793 |  | $ | 2,060 |  | $ | 3,853
Addition due to business combination |  | (1) |  |  | - |  |  | (1)
Deferral of revenue |  | 1,090 |  |  | 116 |  |  | 1,206
Recognition of deferred revenue |  | (1,169) |  |  | (323) |  |  | (1,492)
Effect of foreign currency translation |  | (19) |  |  | - |  |  | (19)
Balance at June 30, 2018 | $ | 1,694 |  | $ | 1,853 |  | $ | 3,547
| Six Months Ended June 30, 2019
| (in thousands)
| Service Contracts |  | Customer Advances |  | Total
Balance at December 31, 2018 | $ | 1,659 |  | $ | 2,161 |  | $ | 3,820
Deferral of revenue |  | 1,126 |  |  | 251 |  |  | 1,377
Recognition of deferred revenue |  | (1,192) |  |  | (473) |  |  | (1,665)
Effect of foreign currency translation |  | - |  |  | - |  |  | -
Balance at June 30, 2019 | $ | 1,593 |  | $ | 1,939 |  | $ | 3,532
| Six Months Ended June 30, 2018
| (in thousands)
| Service Contracts |  | Customer Advances |  | Total
Balance at December 31, 2017 | $ | 505 |  | $ | - |  | $ | 505
Addition due to business combination |  | 848 |  |  | 2,128 |  |  | 2,976
Deferral of revenue |  | 2,283 |  |  | 244 |  |  | 2,527
Recognition of deferred revenue |  | (1,927) |  |  | (519) |  |  | (2,446)
Effect of foreign currency translation |  | (15) |  |  | - |  |  | (15)
Balance at June 30, 2018 | $ | 1,694 |  | $ | 1,853 |  | $ | 3,547
Allowance for doubtful accounts Activity in the allowance for doubtful accounts was as follows:
| Six Months Ended June 30, |
|  | 2019 |  |  | 2018 |
|  | (in thousands) |
Balance, beginning of period | $ | 332 |  | $ | 193 |
Addition due to business combination |  | - |  |  | 102 |
Bad debt expense |  | 368 |  |  | 149 |
Charge-offs and other recoveries |  | (329) |  |  | - |
Effect of foreign currency translation |  | (1) |  |  | 77 |
Balance, end of period | $ | 370 |  | $ | 521 |

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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