Related Party Transactions (Details)	12 Months Ended
Dec. 31, 2015 USD ($) ft² installment	Dec. 31, 2014 USD ($)	Aug. 31, 2011 USD ($) item
Related Party Transaction [Line Items]
Related party notes receivable - long term	$ 1,781,000	$ 1,704,000
Accounts payable	6,460,000	7,137,000
Accounts receivable	18,468,000	17,864,000
Principal and interest on loan		171,000
Nanjing Jin Mei Gallium Co., Ltd [Member]
Related Party Transaction [Line Items]
Income from agency sales	$ 1,000	20,000
Beijing JiYa Semiconductor Material Co., Ltd [Member]
Related Party Transaction [Line Items]
Amount of loan under note agreement			$ 1,600,000
Number of equity method investees to whom loan was granted \| item			1
Term of loan	2 years 9 months 29 days
Number of installments \| installment	3
Related party notes receivable - long term	$ 1,600,000	1,700,000
Accounts payable	2,400,000	1,800,000
Accounts receivable	473,000	350,000
Beijing Tongmei Xtal Technology [Member]
Related Party Transaction [Line Items]
Accounts payable	$ 70,000	513,000
Area of leased property (in square feet) \| ft²	22,081
Lease term	10 years
Annual lease payment	$ 24,000
Increase in annual lease payment at each third year anniversary (in hundredths)	5.00%
Payments to purchase materials	$ 114,000
Additional loan paid to related party	$ 46,000
Interest on loan (in hundredths)	6.15%
Principal and interest on loan	$ 51,000
Beijing Kaide Quartz Co. Ltd [Member]
Related Party Transaction [Line Items]
Accounts payable	$ 379,000	$ 730,000

Refers to the additional loan paid to related party.

No definition available.

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- Definition

Amount of the required annual lease payments.

+ References

No definition available.

+ Details

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- Definition

Represents the aggregate amount of loan under a non-interest bearing note agreement to be sanctioned to an equity method investee.

+ References

No definition available.

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- Definition

Represents number of equity investment entities to which the entity had made loan.

+ References

No definition available.

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Represents total number of installments in which the loan amount is to be received.

+ References

No definition available.

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- Definition

Represents the percentage of the increase in annual lease payment at each third year anniversary under operating lease agreement.

+ References

No definition available.

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- Definition

Represents term of operating lease as stipulated in the respective agreements.

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No definition available.

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- Definition

Income from agency sales.

+ References

No definition available.

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- Definition

Represents the tenor of loan within which the recovery of outstanding is to be completed.

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No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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- Definition

Area of a real estate property.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

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- Definition

Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The cash outflow for acquisition of or capital improvements on other tangible or intangible assets not otherwise defined in the taxonomy.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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