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Cash and Cash Equivalents and Restricted Cash | 6 Months Ended
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Jun. 30, 2018
Cash and Cash Equivalents [Abstract] |
Cash and Cash Equivalents and Restricted Cash | Cash and Cash Equivalents and Restricted Cash Cash and Cash Equivalents Cash and cash equivalents were held in the following geographic regions:
(In thousands) | June 30, 2018 |  | December 31, 2017
United States | $ | 6,465 |  |  | $ | 10,489 |
People's Republic of China ("PRC") | 34,710 |  |  | 23,283 |
Asia (excluding the PRC) | 1,348 |  |  | 1,405 |
Europe | 8,139 |  |  | 18,071 |
South America | 8,771 |  |  | 9,190 |
Total cash and cash equivalents | $ | 59,433 |  |  | $ | 62,438 |
Restricted Cash In connection with the pending sale of our Guangzhou factory in the PRC (Note 10), a prospective buyer made a cash deposit of RMB 32 million ($5.1 million based on April 2018 exchange rates) into an escrow account on September 29, 2016. Under the terms of the escrow account, these funds were not to be paid to us until the close of the sale. Accordingly, this deposit was presented as restricted cash within our consolidated balance sheet. In April 2018, the sale transaction with this buyer was terminated and this deposit was returned to the buyer.

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- Definition The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -URI http://asc.fasb.org/topic&trid=2122426 + Details
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