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Revenue from Contracts with Customers (ASC 606) (Tables) | 9 Months Ended
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Sep. 30, 2019
Revenue from Contract with Customer [Abstract] |
Financial Statement Line Items as Filed and as Adjusted | The following table reflects these financial statement line items as of March 31, 2019 and June 30, 2019, as reported and as adjusted:
|  | At March 31, 2019 |  | At June 30, 2019
|  | As reported |  | As adjusted |  | As reported |  | As adjusted
Current contract assets |  | $ | 3,678 |  |  | $ | 1,439 |  |  | $ | 3,834 |  |  | $ | 1,655 |
Non-current contract assets |  | 7,342 |  |  | 3,912 |  |  | 7,577 |  |  | 3,747 |
Current contract liabilities |  | 12,211 |  |  | 9,252 |  |  | 8,119 |  |  | 5,153 |
Non-current contract liabilities |  | 9,634 |  |  | 5,263 |  |  | 10,056 |  |  | 5,198 |
Non-current deferred tax asset |  | 1,747 |  |  | 1,692 |  |  | 868 |  |  | 820 |
(Accumulated deficit) retained earnings |  | (21,576 | ) |  | (19,971 | ) |  | 25,600 |  |  | 27,365 |
The following table reflects these financial statement line items as of and for the three months ended March 31, 2019 and June 30, 2019, as reported and as adjusted (in thousands):
|  | Three Months Ended |  | Three Months Ended
|  | March 31, 2019 |  | June 30, 2019
|  | As reported |  | As adjusted |  | As reported |  | As adjusted
Product sales |  | $ | 12,874 |  |  | $ | 13,215 |  |  | $ | 14,694 |  |  | $ | 15,189 |
Cost of product sales |  | 7,853 |  |  | 8,284 |  |  | 12,308 |  |  | 12,649 |
Net loss |  | (6,179 | ) |  | (6,254 | ) |  | (3,454 | ) |  | (3,293 | )
Net Sales from Contracts with Customers | The following table summarizes net sales from contracts with customers for the three and nine months ended September 30, 2019:
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
|  | 2019 |  | 2018 |  | 2019 |  | 2018
Mobile connectivity product, transferred at point in time |  | $ | 7,540 |  |  | $ | 6,297 |  |  | $ | 22,536 |  |  | $ | 19,698 |
Mobile connectivity product, transferred over time (a) |  | 537 |  |  | 1,259 |  |  | 1,507 |  |  | 3,881 |
Mobile connectivity service |  | 23,565 |  |  | 21,664 |  |  | 67,982 |  |  | 62,698 |
Inertial navigation product |  | 6,731 |  |  | 8,811 |  |  | 19,169 |  |  | 22,942 |
Inertial navigation service |  | 938 |  |  | 1,281 |  |  | 4,223 |  |  | 4,130 |
Total net sales |  | $ | 39,311 |  |  | $ | 39,312 |  |  | $ | 115,417 |  |  | $ | 113,349 |
a- Reflects the correction discussed above.

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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=118956577&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794 + Details
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