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Long-Term Contracts (Narrative) (Details) - USD ($) | 1 Months Ended | 12 Months Ended
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Oct. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Display-Only |  |  |
Upfront payment received | $ 5,000,000 |  | $ 5,000,000
Deferred Revenue, Description |  |  | In May 2018, we signed a five-year license agreement with a customer granting them exclusive license to our LBS technology for display-only applications. As part of the agreement, we received a first payment of $5.0 million in June 2018 and the second payment of $5.0 million in October 2018. The contract includes requirements that must be met in order to maintain exclusivity. If this licensee acquires a customer, the agreement requires the licensee to buy any needed components from us. During the year ended December 31, 2018 we completed the performance obligations required by the contract. As a result, we recognized $10.0 million in license and royalty revenue during the year ended December 31, 2018.
LBS Display System |  |  |
Upfront payment received |  | $ 10,000,000 |
Contract revenue from development fees |  |  | $ 7,400,000
Deferred Revenue, Description |  |  | In April 2017, we signed a contract with a major technology company to develop an LBS display system. Under the agreement, we received an upfront payment of $10.0 million in 2017 and, as of December 31, 2019, have also received $15.0 million, net of early payment discounts, representing all payment due for development work. The original contract was for $14.0 million in fees for development work, but we and our customer agreed to add $1.1 million in additional work to total $15.1 million. After applying early payment discounts, we recognized revenue of $15.0 million in development fees over time based on the proportion of total cost expended (under Topic 606, the "input method") to the total cost expected to complete the contract performance obligation. For the year ended December 31, 2019, we recognized $2.9 million of contract revenue from development fees on this agreement compared to $7.4 million during the year ended December 31, 2018. The $10.0 million upfront payment will be recognized as revenue at the point in time future component sales are transferred to the customer. Based on current pricing and cost estimates, the amount of the per unit upfront payment would be greater than our estimated per unit gross profit. At December 31, 2019 we had $9.8 million of the $10.0 million upfront payment classified as a contract liability on the balance sheet. We have received purchase orders from our customer under the product supply agreement signed in April 2017. We expect to apply $2.3 million of the upfront payment over the first three quarters of 2020. To the extent that the component purchases do not fully expend the $10.0 million upfront payment, there is no repayment provision to the customer.
Deferred revenue, classified within other currrent liabilities |  |  | $ 10,000,000

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