Alliance Fiber Optic Products (AFOP) Inactive 10-Q13 Nov 132013 Q3 Quarterly reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
Document and Entity Information	Sep. 30, 2013	Oct. 31, 2013
Document and Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Entity Registrant Name	'ALLIANCE FIBER OPTIC PRODUCTS INC	'
Entity Central Index Key	'0001122342	'
Current Fiscal Year End Date	'--12-31	'
Document Fiscal Period Focus	'Q3	'
Document Fiscal Year Focus	'2013	'
Entity Filer Category	'Smaller Reporting Company	'
Entity Common Stock, Shares Outstanding	'	18,335,022

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:	'	'
Cash and cash equivalents	$15,237	$4,793
Short-term investments	30,437	28,482
Accounts receivable, net	12,365	8,046
Inventories, net	10,236	6,933
Deferred tax asset	1,234	1,234
Prepaid expense and other current assets	2,122	1,166
Total current assets	71,631	50,654
Long-term investments	10,408	10,274
Property and equipment, net	10,292	7,708
Deferred tax asset	2,468	2,468
Other assets	197	249
Total assets	94,996	71,353
Current liabilities:	'	'
Accounts payable	12,242	6,591
Accrued expenses	6,038	4,115
Total current liabilities	18,280	10,706
Other long-term liabilities	604	616
Total liabilities	18,884	11,322
Commitments and contingencies (Note 9)	'	'
Stockholders' equity:	'	'
Preferred stock, par value $0.001: 5,000,000 shares authorized: no shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	'	'
Common stock, $0.001 par value: 20,000,000 shares authorized; 18,331,022 and 17,264,926 shares issued and outstanding at September 30, 2013 and December 31, 2012.	18	9
Additional paid-in-capital	116,313	111,900
Accumulated deficit	-42,919	-54,672
Accumulated other comprehensive income	2,700	2,794
Stockholders' equity	76,112	60,031
Total liabilities and stockholders' equity	$94,996	$71,353

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Condensed Consolidated Balance Sheets [Abstract]	'	'
Preferred stock, par value (in dollars per share)	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	18,331,022	17,264,926
Common stock, shares outstanding	18,331,022	17,264,926

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income and Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Condensed Consolidated Statements of Income and Comprehensive Income[Abstract]	'	'	'	'
Revenues	$23,074	$12,390	$54,266	$34,452
Cost of revenues	14,218	7,979	33,722	22,688
Gross profit	8,856	4,411	20,544	11,764
Operating expenses:	'	'	'	'
Research and development	1,024	819	2,696	2,465
Sales and marketing	835	614	2,338	1,951
General and administrative	1,339	1,079	3,640	3,281
Total operating expenses	3,198	2,512	8,674	7,697
Income from operations	5,658	1,899	11,870	4,067
Interest and other income, net	173	194	469	504
Net income before income tax	5,831	2,093	12,339	4,571
Income tax	-210	-201	-586	-526
Net income	5,621	1,892	11,753	4,045
Cumulative translation adjustments	183	303	-97	585
Unrealized gain on investments	3	42	2	33
Comprehensive income	$5,807	$2,237	$11,658	$4,663
Net income per share:	'	'	'	'
Basic	$0.31	$0.11	$0.67	$0.23
Diluted	$0.30	$0.11	$0.65	$0.22
Shares used in computing net income per share:	'	'	'	'
Basic	18,056	17,581	17,584	17,638
Diluted	18,754	17,977	18,107	18,000

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:	'	'
Net Income	$11,753	$4,045
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	1,513	1,189
(Gain) Loss on disposal of property and equipment	-5	6
Amortization of stock-based compensation	1,254	786
Deferred restricted stock unit compensation	-1,326	-647
Provision for inventory	-222	164
Changes in assets and liabilities:	'	'
Accounts receivable	-4,318	-1,662
Inventories	-3,081	-703
Prepaid expenses and other assets	-956	-1,056
Other assets	53	-52
Accounts payable	5,651	2,592
Accrued expenses	1,923	649
Other long-term liabilities	-12	34
Net cash provided by operating activities	12,227	5,345
Cash flows from investing activities:	'	'
Purchase of short-term investments	-16,028	-17,193
Proceeds from sales and maturities of short-term investments	14,075	8,850
Purchase of long-term investments	-134	-131
Purchase of property and equipment	-4,025	-717
Net cash used in investing activities	-6,112	-9,191
Cash flows from financing activities:	'	'
Proceeds from issuance of stock under ESPP	235	207
Proceeds from the exercise of stock options	5,131	477
Repurchase of common stock	-873	-2,395
Repayments of bank borrowings	'	-230
Net cash provided by (used in) financing activities	4,493	-1,941
Effect of exchange rate changes on cash and cash equivalents	-164	485
Net increase (decrease) in cash and cash equivalents	10,444	-5,302
Cash and cash equivalents at beginning of period	4,793	13,820
Cash and cash equivalents at end of period	15,237	8,518
Supplemental disclosure of cash flow information:	'	'
Cash paid for interest	'	-4
Cash paid for income tax	($340)	($379)

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
Summary of Significant Accounting Policies	Sep. 30, 2013
Summary of Significant Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'

	1. Summary of Significant Accounting Policies

	The Company

	Alliance Fiber Optic Products, Inc. (the "Company") was incorporated in California on December 12, 1995 and reincorporated in Delaware on October 19, 2000. The Company designs, manufactures and markets fiber optic components for communications equipment manufacturers and service providers. The Company's headquarters are located in Sunnyvale, California, and it has operations in Taiwan and China.

	Basis of Presentation

	The accompanying condensed consolidated balance sheet as of December 31, 2012, which has been derived from audited financial statements, and the unaudited interim condensed consolidated financial statements as of September 30, 2013 and for the three and nine months ended September 30, 2013 and 2012 have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") and include the accounts of Alliance Fiber Optic Products, Inc. and its wholly-owned subsidiaries. All inter-company accounts and transactions have been eliminated. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") have been condensed or omitted pursuant to such rules and regulations.

	These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2012. The unaudited condensed consolidated financial statements as of September 30, 2013, and for the three and nine months ended September 30, 2013 and 2012, reflect, in the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary to state fairly the financial information set forth herein. The results of operations for the interim periods are not necessarily indicative of the results to be expected for any subsequent interim period or for an entire year.

	There have been no significant changes in the Company's critical accounting policies during the nine months ended September 30, 2013 as compared to what was previously disclosed in the Company's Form 10-K for the fiscal year ended December 31, 2012.

	Revenue Recognition

	The Company recognizes revenue upon shipment of its products to customers, provided that it has received a purchase order, the price is fixed, collection of the resulting receivable is reasonably assured and transfer of title and risk of loss has occurred. Subsequent to the sale of products, the Company has no obligation to provide any modification or customization upgrades, enhancements or post contract customer support.

	Allowance for Doubtful Accounts

	Allowances are provided for estimated returns and potential uncollectable trade receivables. Provisions for return allowances are recorded at the time revenue is recognized based on historical returns, current economic trends and changes in customer demand. Such allowances are adjusted periodically to reflect actual and anticipated experience. The Company also identifies specific accounts considered to have a high risk of uncollectibility and reserves the full amount. Material differences may result in the amount and timing of revenue for any period than if management had made different judgments or utilized different estimates.

	Cash and Cash Equivalents

	The Company considers all highly liquid instruments with a maturity of three months or less when purchased to be cash equivalents. Cash equivalents consist primarily of market rate accounts, corporate bonds and certificates of deposit.

	Short-Term and Long-Term Investments

	The Company generally invests its excess cash in certificates of deposit, corporate bonds, and commercial paper. Such investments are made in accordance with the Company's investment policy, which establishes guidelines relative to diversification and maturities designed to maintain safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates.

	Concentrations of Risk

	Connectivity products contributed 76.2% and 67.0% of the Company's revenues for the three months ended September 30, 2013 and 2012, respectively. The Company's optical passive products contributed 23.8% and 33.0% of the Company's revenues for the three months ended September 30, 2013 and 2012, respectively.

	Connectivity products contributed 75.5% and 71.4% of the Company's revenues for the nine months ended September 30, 2013 and 2012, respectively. The Company's optical passive products contributed 24.5% and 28.6% of the Company's revenues for the nine months ended September 30, 2013 and 2012, respectively.

	In the three months ended September 30, 2013 and 2012, the Company's 10 largest customers comprised 79.1% and 66.3% of the Company's revenues, respectively. For the three months ended September 30, 2013, two customers accounted for 40.1% and 11.2% of the Company's total revenues, respectively. Amounts due from these customers were $4.5 million and $1.4 million, respectively, at September 30, 2013. For the three months ended September 30, 2012, three customers accounted for 14.1%, 11.0% and 10.1% of the Company's total revenues, respectively. Amounts due from these customers were $1.5 million, $1.0 million and $0.8 million, respectively, at September 30, 2012.

	In the nine months ended September 30, 2013 and 2012, the Company's 10 largest customers comprised 74.5% and 62.9% of the Company's revenues, respectively. For the nine months ended September 30, 2013, two customers accounted for 32.4% and 10.4% of the Company's total revenues. For the nine months ended September 30, 2012, no customer accounted for 10% or more of the Company's revenues.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements and Accounting Changes	9 Months Ended
Recent Accounting Pronouncements and Accounting Changes	Sep. 30, 2013
Recent Accounting Pronouncements and Accounting Changes [Abstract]	'
Recent Accounting Pronouncements and Accounting Changes	'

	2. Recent Accounting Pronouncements and Accounting Changes

	In July 2013, the Financial Accounting Standards Board ("FASB") issued guidance on the presentation of an unrecognized tax benefit when a net operating loss carryforward, similar tax loss or tax carryforward exists. The FASB concluded that an unrecognized tax benefit should be presented as a reduction of a deferred tax asset except in certain circumstances the unrecognized tax benefit should be presented as a liability and should not be combined with deferred tax assets. The amendment is effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013, with early adoption permitted. The Company is currently evaluating the impact this amendment may have on its consolidated financial statements.

	In March 2013, the FASB issued guidance to clarify when to release cumulative foreign currency translation adjustments when an entity ceases to have a controlling financial interest in a subsidiary or group of assets within a foreign entity. The amendment is effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013 and should be applied prospectively to derecognition events occurring after the effective date. Early adoption is permitted. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial statements.

	In February 2013, the FASB issued guidance requiring presentation of amounts reclassified from each component of accumulated other comprehensive income. In addition, disclosure is required of the effects of significant reclassifications on income statement line items either on the face of the statement where net income is presented or as a separate disclosure in the notes to the financial statements. For public entities, this guidance is effective prospectively for reporting periods beginning after December 15, 2012. The adoption of this guidance did not have a material impact on the Company's consolidated financial statements.

Stockholders_Equity

Stockholders' Equity	9 Months Ended
Stockholders' Equity	Sep. 30, 2013
Stockholders' Equity [Abstract]	'
Stockholders' Equity	'

	3. Stockholders' Equity

	On August 15, 2013, the Company announced it had declared a 2-for-1 stock split of the Common Stock of the Company ("Common Stock"), for distribution on September 16, 2013 to stockholders of record holding shares of Common Stock at the close of business on August 30, 2013. All share and per share amounts in the accompanying financial statements have been retroactively restated to reflect such stock split.

Stockbased_Compensation

Stock-based Compensation	9 Months Ended
Stock-based Compensation	Sep. 30, 2013
Stock-based Compensation [Abstract]	'
Stock-based Compensation	'

	4. Stock-based Compensation

	The Accounting Standards Codification ("ASC") 718 requires companies to record compensation expense for stock options measured at fair value, on the date of grant, using an option-pricing model. The fair value of stock options granted and stock purchased pursuant to the Employee Stock Purchase Plan ("ESPP") prior to June 30, 2010 was determined using the Binomial Lattice Model.

	Pursuant to the Company's 2000 Stock Incentive Plan, participants may be granted restricted stock units ("RSUs"), representing an unfunded, unsecured right to receive a Company common share on the date specified in the recipient's award. The RSUs granted under the plan generally vest over two years at a rate of 50 percent per year or over five years at a rate of 20 percent per year. The Company recognizes compensation expense on a straight-line basis over the vesting term of each award.

	Options granted under the 2000 Stock Incentive Plan generally vest over four years. Options are exercisable for not more than ten years.

	The following information relates to stock option activity for the nine months ended September 30, 2013:

						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
	Options	Shares		Price		Life		Value
	Outstanding at December 31, 2012	1,436,360		$	3.92
	Granted	212,800			7.12
	Exercised	(1,046,560	)		3.87
	Forfeited	-			-
	Outstanding at September 30, 2013	602,600		$	5.14	7.86 Years		$	9,240,663
	Vested and expected to vest at September 30, 2013	602,600		$	5.14	7.86 Years		$	9,240,663
	Exercisable at September 30, 2013	148,360		$	3.74	4.25 Years		$	2,481,962

	The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the Company's closing stock price on the last trading day of the third quarter of fiscal 2013 and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on September 30, 2013. This amount changes based on the fair market value of the Company's stock. The total intrinsic value of options exercised was $9.5 million and $12.3 million for the three and nine months ended September 30, 2013, respectively. The total intrinsic value of options exercised was $0.08 million and $0.5 million for the three and nine months ended September 30, 2012, respectively.

	No options were granted during the three months ended September 30, 2013 or 2012. As of September 30, 2013, there was $3.6 million of unrecognized compensation cost related to share-based compensation arrangements granted under the Plan. The compensation cost is expected to be realized over four years.

	Cash received from option exercises during the three and nine months ended September 30, 2013 was $2.4 million and $3.8 million, respectively, and is included within the financing activities section in the accompanying condensed consolidated statements of cash flows.

	During the nine months ended September 30, 2013, a total of 51,232 shares were issued under the Company's ESPP and cash received from purchases of common stock was $0.2 million. Compensation expense recorded in the quarter ended September 30, 2013 related to the ESPP was approximately $0.09 million. As of September 30, 2013, there was $0.03 million of unrecognized compensation cost related to the ESPP which is expected to be realized over the next month.

	During the nine months ended September 30, 2011, the Company granted 546,000 RSUs with a total grant-date fair value of $2.5 million. The resulting compensation expense recorded in the quarter ended September 30, 2013 was $0.1 million. There was $1.0 million of total unrecognized compensation cost related to RSUs granted under the Plan, all of which is expected to be realized over three years.

	During the nine months ended September 30, 2013, the Company granted 342,000 RSUs with a total grant-date fair value of $2.3 million. The resulting compensation expense recorded in the quarter ended September 30, 2013 was $0.3 million. There was $1.9 million of total unrecognized compensation cost related to RSUs granted under the Plan, of which $1.0 million is expected to be realized over two years and $0.9 million is expected to be realized over three years.

	The following table summarizes employee stock-based compensation expense resulting from stock options, RSUs, and the ESPP (in thousands):

		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013			2012
	Included in cost of revenue	$	116	$	28	$	215		$	86
	Included in operating expenses:
	Research and development		71		32		149			92
	Sales and marketing		132		65		295			188
	General and administrative		244		143		595			420
	Total		447		240		1,039			700
	Total stock-based compensation expense	$	563	$	268	$	1,254		$	786

Inventories_net

Inventories, net	9 Months Ended
Inventories, net	Sep. 30, 2013
Inventories, net [Abstract]	'
Inventories, net	'

	5. Inventories, net (in thousands)

		September 30,		December 31,
		2013		2012
	Inventories:
	Finished goods	$	2,635	$	1,824
	Work-in-process		4,019		2,546
	Raw materials		3,582		2,563
		$	10,236	$	6,933

Net_Income_Per_Share

Net Income Per Share	9 Months Ended
Net Income Per Share	Sep. 30, 2013
Net Income Per Share [Abstract]	'
Net Income Per Share	'

	6. Net Income Per Share

	Basic net income per share is computed by dividing net income for the period by the weighted average number of shares of common stock outstanding during the period. Diluted net income per share is computed by dividing net income for the period by the combination of dilutive common share equivalents, comprised of shares issuable under the Company's stock-based compensation plans, and the weighted-average number of shares of common stock outstanding during the period. There were no incremental dilutive common share equivalents in the periods presented.

	The following table sets forth the computation of basic and diluted net income per share for the periods indicated (in thousands, except per share data):

		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
	Numerator:
	Net income	$	5,621	$	1,892	$	11,753	$	4,045
	Denominator:
	Shares used in computing net income per share:
	Basic		18,056		17,581		17,584		17,638
	Diluted		18,754		17,977		18,107		18,000
	Net income per share:
	Basic	$	0.31	$	0.11	$	0.67	$	0.23
	Diluted	$	0.3	$	0.11	$	0.65	$	0.22

Comprehensive_Income

Comprehensive Income	9 Months Ended
Comprehensive Income	Sep. 30, 2013
Comprehensive Income [Abstract]	'
Comprehensive Income	'

	7. Comprehensive Income

	Comprehensive income is defined as the change in equity of a company during a period resulting from transactions and other events and circumstances, excluding transactions resulting from investments by owners and distributions to owners. The difference between net income and comprehensive income for the Company is due to foreign exchange translations adjustments and unrealized gain on available-for-sale securities.

Income_Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2013
Income Taxes [Abstract]	'
Income Taxes	'

	8. Income Taxes

	The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date.

	The Company's effective tax rate was below the U.S. statutory rate primarily because of the tax benefit arising from net operating loss carryforwards. The Company is subject to income tax in both the United States and various foreign jurisdictions. The effective tax rate is also affected by the taxable earnings in foreign jurisdictions with various different statutory tax rates. The Company reviews its expected annual effective income tax rates and makes changes on a quarterly basis as necessary based on certain factors such as forecasted annual operating income and valuation of deferred tax assets.

	The Company records net deferred tax assets to the extent it believes these assets will more likely than not be realized. In making such determination, management considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies and recent financial operations. In the event the Company was to determine that it would be able to realize its deferred income tax assets in the future in excess of their net recorded amount, the Company would make an adjustment to the valuation allowance, which would reduce the provision for income taxes.

	Management assesses the available positive and negative evidence to estimate if sufficient future taxable income will be generated to utilize the existing deferred tax assets. Based on this assessment, as of September 30, 2013, reduction in the valuation allowance in the amount of $3.7 million has been recorded in order to measure only the portion of the deferred tax asset that more likely than not will be realized. The amount of the deferred tax asset considered realizable, however, could be adjusted if estimates of future taxable income during the carry forward period are reduced or if objective negative evidence in the form of cumulative losses is no longer present and additional weight may be given to subjective evidence such as expectations for growth.

	The Company adopted ASC 740, Accounting for Uncertainty in Income Taxes on January 1, 2007. As per ASC 740, a tax benefit from an uncertain tax position may be recognized when it is more likely than not that the position will be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits. The Company did not have any material unrecognized tax benefits or uncertain tax positions at September 30, 2013.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies [Abstract]	'
Commitments and Contingencies	'

	9. Commitments and Contingencies

	Litigation

	From time to time, the Company may be involved in litigation in the normal course of business. As of the date of these financial statements, the Company is not aware of any material legal proceedings pending or threatened against the Company.

	Indemnification and Product Warranty

	The Company indemnifies certain customers, suppliers and subcontractors for attorney fees and damages and costs awarded against these parties in certain circumstances in which products are alleged to infringe third party intellectual property rights, including patents, trade secrets, trademarks or copyrights. In all cases, there are limits on and exceptions to the potential liability for indemnification relating to intellectual property infringement claims. The Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements. As of September 30, 2013, the Company has not paid any claim or been required to defend any action related to indemnification obligations, and accordingly, the Company has not accrued any amounts for such indemnification obligations. However, the Company may record charges in the future as a result of these indemnification obligations.

	The Company generally warrants products against defects in materials and workmanship and non-conformance to specifications for varying lengths of time. If there is a material increase in customer claims compared with historical experience, or if costs of servicing warranty claims are greater than expected, the Company may record a charge against cost of revenues. The Company accrued $0.06 million and $0.02 million for warranty reserves at each of September 30, 2013 and 2012, respectively.

	Operating Leases

	The Company leases office space under long-term operating leases expiring at various dates through 2017.

	The Company's aggregate future minimum facility lease payments are as follows (in thousands):

	Years ending December 31:
	2013 (remaining three months of the year)	$	182
	2014		680
	2015		239
	2016		22
	2017 and after		2
	Total	$	1,125

Bank_Loans

Bank Loans	9 Months Ended
Bank Loans	Sep. 30, 2013
Bank Loans [Abstract]	'
Bank Loans	'

	10. Bank Loans

	In November 2004, the Company entered into a ten-year loan of $0.5 million in Taiwan with an interest rate of 2.3% for the first two years and 3.6% for the following years. In November 2006, the Company entered into a seven-year loan of $0.2 million in Taiwan with an interest rate of 2.8%. Both loans were secured by the Company's building in Taiwan. In September 2007, the Company also entered a five-year equipment loan of $0.1 million with an interest rate of 3.68%. In July 2012, the Company paid off all of the loans.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
Related Party Transactions	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'

	11. Related Party Transactions

	As of September 30, 2013, based on information filed with the Securities and Exchange Commission on January 4, 2002 for the year ended December 31, 2000, Foxconn Holding Limited ("Foxconn") and Hon Hai Precision Industry Co. Ltd. ("Hon Hai") held 17.46% of the Company's common stock. In the normal course of business, the Company sells products to and purchases raw materials from Hon Hai, who is the parent company of Foxconn. These transactions were made at prices and terms consistent with those of unrelated third parties.

	There were no sales of products to Hon Hai in either of the three or nine months ended September 30, 2013. Purchases of raw materials from Hon Hai were $0.5 million and $1.2 million for the three and nine months ended September 30, 2013, respectively. No amounts were due from Hon Hai at September 30, 2013. Amounts due to Hon Hai were $0.4 million at September 30, 2013.

	Sales of products to Hon Hai were zero and $0.06 million for the three and nine months ended September 30, 2012, respectively. Purchases of raw materials from Hon Hai were $0.2 million and $0.8 million for the three and nine months ended September 30, 2012, respectively. Amounts due from Hon Hai were $0.03 million for both the three and nine months ended September 30, 2012. Amounts due to Hon Hai were $0.3 million for both the three and nine months ended September 30, 2012.

Fair_Value_of_Financial_instru

Fair Value of Financial instruments

9 Months Ended

Sep. 30, 2013

Fair Value of Financial instruments [Abstract]

Fair Value of Financial instruments

12. Fair Value of Financial instruments

U.S. GAAP defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required to be recorded at fair value, the Company considers the principal or most advantageous market in which the Company would transact a purchase or sale and the market-based risk measurements or assumptions that market participants would use in pricing the asset or liability.

The Company uses a fair value hierarchy established by U.S. GAAP that established a three-tiered fair value hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable to prioritize inputs used to measure fair value. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company's market assumptions. A financial instrument's categorization within the fair value hierarchy is based upon the lowest level of input that is available and significant to the fair value measurement. Those tiers are defined as follows:

Level 1 -

inputs are quoted prices in active markets for identical assets or liabilities.

Level 2 -

inputs other than quoted prices included within Level 1 that are observable, either directly or indirectly.

Level 3 -

inputs are unobservable and shall be used to the extent that observable inputs are not available in the overall fair value measurement.

In 2012, the Company adopted Accounting Standards Update ("ASU") No. 2011-04 "Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards ("IFRS")" ("ASU 2011-04"). ASU 2011-04 includes common requirements for measurement of and disclosure about fair value between U.S. GAAP and IFRS. ASU 2011-04 requires a reporting entity to disclose the reason for the measurement, where for recurring fair value measurements, the reason for measuring an asset or liability at fair value is often that either 1) it is required under other existing U.S. GAAP codification guidance or 2) the reporting entity has elected the fair value option under ASC 825. In regards to the Company, it is required under U.S. GAAP.

ASU 2011-04 also requires reporting entities to disclose the following information for all Level 2 and Level 3 fair value measurement, where it requires that an entity must disclose a description of the valuation techniques and the inputs used in those measurements.

For its Level 2 investments, the Company uses quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset.

For all Level 3 measurements, ASU 2011-04 requires that an entity disclose quantitative information about the significant unobservable inputs used in those measurements. The Company has no Level 3 measurements.

In addition, ASU 2011-04 requires reporting entities to make disclosure about amounts and reasons for all the transfers out of Level 1 and Level 2 fair value measurements. The Company had no such transfers for the nine months ended September 30, 2013.

The adoption of ASU 2011-04 did not have a significant impact on the Company's financial statements.

In accordance with the U.S. GAAP Codification Topic 820, the following table represent the fair value hierarchy for the Company's financial assets (investments) measured at fair value on a recurring basis as of September 30, 2013:

Fair Value Measurements at

Reporting Date Using

Quoted Prices

Significant

in Active

Other

Significant

Balance at

Markets for

Observable

Unobservable

September 30,

Identical Assets

Inputs

2013

(Level 1)

(Level 2)

(Level 3)

Cash equivalents:

Money market mutual funds

2,277

Marketable Securities:

Time deposits

17,284

Corporate bonds

13,153

Long-term investments:

Time deposits

10,408

Total

43,122

29,969

13,153

As of September 30, 2013, the Company held investments in corporate bonds, certificates of deposit, and money market securities. The Company's cash and cash equivalents consist of investments with original maturities of 90 days or less from the date of purchase. The Company's short-term investments consist of corporate bonds and certificates of deposit with original maturities of 91 days or more from the date of purchase. The Company's long-term investments comprise certificates of deposit with original maturities of 365 days or more from the date of purchase.

Geographic_Segment_Information

Geographic Segment Information	9 Months Ended
Geographic Segment Information	Sep. 30, 2013
Geographic Segment Information [Abstract]	'
Geographic Segment Information	'

	13. Geographic Segment Information

	The Company operates in a single industry segment. This industry segment is characterized by rapid technological change and significant competition.

	The following is a summary of the Company's revenues generated by geographic segments, revenues generated by product lines and identifiable assets located in these segments (in thousands):

		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
	Revenues
	North America	$	13,085	$	7,184	$	32,260	$	20,435
	Europe		4,379		2,327		10,519		6,178
	Asia		5,610		2,879		11,487		7,839
		$	23,074	$	12,390	$	54,266	$	34,452

		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
	Revenues
	Connectivity Products	$	17,572	$	8,307	$	40,990	$	24,591
	Optical Passive Products		5,502		4,083		13,276		9,861
		$	23,074	$	12,390	$	54,266	$	34,452

		September 30,		December 31,
		2013		2012
	Property and Equipment
	United States	$	42	$	43
	Taiwan		4,769		3,473
	China		5,481		4,192
		$	10,292	$	7,708

Subsequent_Event

Subsequent Event	9 Months Ended
Subsequent Event	Sep. 30, 2013
Subsequent Event [Abstract]	'
Subsequent Event	'

	14. Subsequent Event

	On November 1, 2013, the Company held a special meeting of its stockholders (the "Special Meeting") at which stockholders approved an increase in the number of shares of authorized Common Stock from 20,000,000 to 100,000,000 shares and an increase by 900,000 the number of shares of Common Stock available for issuance under the 2000 Stock Incentive Plan.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2013
Summary of Significant Accounting Policies [Abstract]	'
Basis of Presentation	'

	Basis of Presentation

	The accompanying condensed consolidated balance sheet as of December 31, 2012, which has been derived from audited financial statements, and the unaudited interim condensed consolidated financial statements as of September 30, 2013 and for the three and nine months ended September 30, 2013 and 2012 have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") and include the accounts of Alliance Fiber Optic Products, Inc. and its wholly-owned subsidiaries. All inter-company accounts and transactions have been eliminated. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") have been condensed or omitted pursuant to such rules and regulations.

	These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2012. The unaudited condensed consolidated financial statements as of September 30, 2013, and for the three and nine months ended September 30, 2013 and 2012, reflect, in the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary to state fairly the financial information set forth herein. The results of operations for the interim periods are not necessarily indicative of the results to be expected for any subsequent interim period or for an entire year.

	There have been no significant changes in the Company's critical accounting policies during the nine months ended September 30, 2013 as compared to what was previously disclosed in the Company's Form 10-K for the fiscal year ended December 31, 2012.

Revenue Recognition	'

	Revenue Recognition

	The Company recognizes revenue upon shipment of its products to customers, provided that it has received a purchase order, the price is fixed, collection of the resulting receivable is reasonably assured and transfer of title and risk of loss has occurred. Subsequent to the sale of products, the Company has no obligation to provide any modification or customization upgrades, enhancements or post contract customer support.

Allowance for Doubtful Accounts	'

	Allowance for Doubtful Accounts

	Allowances are provided for estimated returns and potential uncollectable trade receivables. Provisions for return allowances are recorded at the time revenue is recognized based on historical returns, current economic trends and changes in customer demand. Such allowances are adjusted periodically to reflect actual and anticipated experience. The Company also identifies specific accounts considered to have a high risk of uncollectibility and reserves the full amount. Material differences may result in the amount and timing of revenue for any period than if management had made different judgments or utilized different estimates.

Cash and Cash Equivalents	'

	Cash and Cash Equivalents

	The Company considers all highly liquid instruments with a maturity of three months or less when purchased to be cash equivalents. Cash equivalents consist primarily of market rate accounts, corporate bonds and certificates of deposit.

Short-Term and Long-Term Investments	'

	Short-Term and Long-Term Investments

	The Company generally invests its excess cash in certificates of deposit, corporate bonds, and commercial paper. Such investments are made in accordance with the Company's investment policy, which establishes guidelines relative to diversification and maturities designed to maintain safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates.

Concentrations of Risk	'

	Concentrations of Risk

	Connectivity products contributed 76.2% and 67.0% of the Company's revenues for the three months ended September 30, 2013 and 2012, respectively. The Company's optical passive products contributed 23.8% and 33.0% of the Company's revenues for the three months ended September 30, 2013 and 2012, respectively.

	Connectivity products contributed 75.5% and 71.4% of the Company's revenues for the nine months ended September 30, 2013 and 2012, respectively. The Company's optical passive products contributed 24.5% and 28.6% of the Company's revenues for the nine months ended September 30, 2013 and 2012, respectively.

	In the three months ended September 30, 2013 and 2012, the Company's 10 largest customers comprised 79.1% and 66.3% of the Company's revenues, respectively. For the three months ended September 30, 2013, two customers accounted for 40.1% and 11.2% of the Company's total revenues, respectively. Amounts due from these customers were $4.5 million and $1.4 million, respectively, at September 30, 2013. For the three months ended September 30, 2012, three customers accounted for 14.1%, 11.0% and 10.1% of the Company's total revenues, respectively. Amounts due from these customers were $1.5 million, $1.0 million and $0.8 million, respectively, at September 30, 2012.

	In the nine months ended September 30, 2013 and 2012, the Company's 10 largest customers comprised 74.5% and 62.9% of the Company's revenues, respectively. For the nine months ended September 30, 2013, two customers accounted for 32.4% and 10.4% of the Company's total revenues. For the nine months ended September 30, 2012, no customer accounted for 10% or more of the Company's revenues.

Stockbased_Compensation_Tables

Stock-based Compensation (Tables)	9 Months Ended
Stock-based Compensation (Tables)	Sep. 30, 2013
Stock-based Compensation [Abstract]	'
Schedule of Stock Options Activity	'
						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
	Options	Shares		Price		Life		Value
	Outstanding at December 31, 2012	1,436,360		$	3.92
	Granted	212,800			7.12
	Exercised	(1,046,560	)		3.87
	Forfeited	-			-
	Outstanding at September 30, 2013	602,600		$	5.14	7.86 Years		$	9,240,663
	Vested and expected to vest at September 30, 2013	602,600		$	5.14	7.86 Years		$	9,240,663
	Exercisable at September 30, 2013	148,360		$	3.74	4.25 Years		$	2,481,962
Schedule of Employee Stock-Based Compensation Expense	'
		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013			2012
	Included in cost of revenue	$	116	$	28	$	215		$	86
	Included in operating expenses:
	Research and development		71		32		149			92
	Sales and marketing		132		65		295			188
	General and administrative		244		143		595			420
	Total		447		240		1,039			700
	Total stock-based compensation expense	$	563	$	268	$	1,254		$	786

Inventories_net_Tables

Inventories, net (Tables)	9 Months Ended
Inventories, net (Tables)	Sep. 30, 2013
Inventories, net [Abstract]	'
Schedule of Inventories	'
		September 30,		December 31,
		2013		2012
	Inventories:
	Finished goods	$	2,635	$	1,824
	Work-in-process		4,019		2,546
	Raw materials		3,582		2,563
		$	10,236	$	6,933

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	9 Months Ended
Net Income Per Share (Tables)	Sep. 30, 2013
Net Income Per Share [Abstract]	'
Schedule of Computation of Basic and Diluted Net Income Per Share	'
		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
	Numerator:
	Net income	$	5,621	$	1,892	$	11,753	$	4,045
	Denominator:
	Shares used in computing net income per share:
	Basic		18,056		17,581		17,584		17,638
	Diluted		18,754		17,977		18,107		18,000
	Net income per share:
	Basic	$	0.31	$	0.11	$	0.67	$	0.23
	Diluted	$	0.3	$	0.11	$	0.65	$	0.22

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
Commitments and Contingencies (Tables)	Sep. 30, 2013
Commitments and Contingencies [Abstract]	'
Schedule of Aggregate Future Minimum Facility Lease Payments	'
	Years ending December 31:
	2013 (remaining three months of the year)	$	182
	2014		680
	2015		239
	2016		22
	2017 and after		2
	Total	$	1,125

Fair_Value_of_Financial_instru1

Fair Value of Financial instruments (Tables)	9 Months Ended
Fair Value of Financial instruments (Tables)	Sep. 30, 2013
Fair Value of Financial instruments [Abstract]	'
Schedule of Financial Assets at Fair Value	'
		Fair Value Measurements at
		Reporting Date Using
				Quoted Prices		Significant
				in Active		Other		Significant
		Balance at		Markets for		Observable		Unobservable
		September 30,		Identical Assets		Inputs		Inputs
		2013		(Level 1)		(Level 2)		(Level 3)
	Cash equivalents:
	Money market mutual funds	$	2,277	$	2,277	$	-	$	-
	Marketable Securities:
	Time deposits		17,284		17,284		-		-
	Corporate bonds		13,153		-		13,153		-
	Long-term investments:
	Time deposits		10,408		10,408		-		-
	Total	$	43,122	$	29,969	$	13,153	$	-

Geographic_Segment_Information1

Geographic Segment Information (Tables)	9 Months Ended
Geographic Segment Information (Tables)	Sep. 30, 2013
Geographic Segment Information [Abstract]	'
Schedule of Segment Reporting Information	'
		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
	Revenues
	North America	$	13,085	$	7,184	$	32,260	$	20,435
	Europe		4,379		2,327		10,519		6,178
	Asia		5,610		2,879		11,487		7,839
		$	23,074	$	12,390	$	54,266	$	34,452

		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
	Revenues
	Connectivity Products	$	17,572	$	8,307	$	40,990	$	24,591
	Optical Passive Products		5,502		4,083		13,276		9,861
		$	23,074	$	12,390	$	54,266	$	34,452

		September 30,		December 31,
		2013		2012
	Property and Equipment
	United States	$	42	$	43
	Taiwan		4,769		3,473
	China		5,481		4,192
		$	10,292	$	7,708

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

In Thousands, unless otherwise specified

Customer A [Member]

Customer B [Member]

Customer C [Member]

Sales [Member]

Product Concentration Risk [Member]

Customer Concentration Risk [Member]

Connectivity Products [Member]

Optical Passive Products [Member]

Customer A [Member]

Customer B [Member]

Customer C [Member]

Concentration Risk [Line Items]

Concentration Risk, Percentage

76.20%

67.00%

75.50%

71.40%

23.80%

33.00%

24.50%

28.60%

79.10%

66.30%

74.50%

62.90%

40.10%

14.10%

32.40%

11.20%

11.00%

10.40%

10.10%

Accounts receivable, net

$12,365

$8,046

$4,500

$1,500

$1,400

$1,000

$800

Stockholders_Equity_Details

Stockholders' Equity (Details)	1 Months Ended
Stockholders' Equity (Details)	Aug. 15, 2013
Stockholders' Equity [Abstract]	'
Stock split, conversion ratio	2

Stockbased_Compensation_Schedu

Stock-based Compensation (Schedule of Stock Option Activity) (Details) (USD $)	9 Months Ended
	Sep. 30, 2013
Shares	'
Outstanding, beginning balance	1,436,360
Granted	212,800
Exercised	-1,046,560
Forfeited	'
Outstanding, ending balance	602,600
Vested and expected to vest, end of period	602,600
Exercisable, end of period	148,360
Weighted Average Exercise Price	'
Outstanding, beginning balance	$3.92
Granted	$7.12
Exercised	$3.87
Forfeited	'
Outstanding, ending balance	$5.14
Vested and expected to vest, end of period	$5.14
Exercisable, end of period	$3.74
Weighted Average Remaining Contractual Life	'
Outstanding, ending balance	'7 years 10 months 10 days
Vested and expected to vest, end of period	'7 years 10 months 10 days
Exercisable, end of period	'4 years 3 months
Aggregate Intrinsic Value	'
Outstanding, ending balance	$9,240,663
Vested and expected to vest, end of period	9,240,663
Exercisable, end of period	$2,481,962

Stockbased_Compensation_Narrat

Stock-based Compensation (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
Stock-based Compensation (Narrative) (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2010	Nov. 30, 2000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Common stock were reserved for issuance	'	'	'	'	10,000,000	300,000
Intrinsic value of options exercised	$9,500,000	$80,000	$12,300,000	$500,000	'	'
Cash received from option exercises	2,400,000	100,000	3,800,000	500,000	'	'
Shares were issued under ESPP	'	'	51,232	'	'	'
Proceeds from issuance of stock under ESPP	'	'	235,000	207,000	'	'
Compensation expense	563,000	268,000	1,254,000	786,000	'	'
Restricted Stock Units (RSUs) [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Compensation expense	3,000	'	'	'	'	'
Unrecognized compensation cost	1,900,000	'	1,900,000	'	'	'
Unrecognized compensation cost, recognition period	'	'	'3 years	'	'	'
Unrecognized compensation cost, year two	10,000	'	10,000	'	'	'
Unrecognized compensation cost, year three	9,000	'	9,000	'	'	'
Restricted Stock Units (RSUs) [Member] \| 2011 Grant [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Restricted stock units granted	'	'	546,000	'	'	'
Grant-date fair value of units granted	'	'	2,500,000	'	'	'
Compensation expense	100,000	'	'	'	'	'
Unrecognized compensation cost	1,000,000	'	1,000,000	'	'	'
Unrecognized compensation cost, recognition period	'	'	'3 years	'	'	'
Restricted Stock Units (RSUs) [Member] \| 2013 Grant [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Restricted stock units granted	'	'	342,000	'	'	'
Grant-date fair value of units granted	'	'	2,300,000	'	'	'
Compensation expense	300,000	'	'	'	'	'
Unrecognized compensation cost	1,900,000	'	1,900,000	'	'	'
Unrecognized compensation cost, recognition period	'	'	'3 years	'	'	'
Unrecognized compensation cost, year two	1,000,000	'	1,000,000	'	'	'
Unrecognized compensation cost, year three	900,000	'	900,000	'	'	'
Restricted Stock Units (RSUs) [Member] \| Vesting Tranche One [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Vesting period	'	'	'2 years	'	'	'
Vesting rate	'	'	50.00%	'	'	'
Restricted Stock Units (RSUs) [Member] \| Vesting Tranche Two [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Vesting period	'	'	'5 years	'	'	'
Vesting rate	'	'	20.00%	'	'	'
Employee Stock Option [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Vesting period	'	'	'4 years	'	'	'
Plan duration	'	'	'10 years	'	'	'
Unrecognized compensation cost	3,600,000	'	3,600,000	'	'	'
Unrecognized compensation cost, recognition period	'	'	'4 years	'	'	'
Employee Stock Purchase Plan [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Compensation expense	90,000	'	'	'	'	'
Unrecognized compensation cost	$30,000	'	$30,000	'	'	'
Unrecognized compensation cost, recognition period	'	'	'1 month	'	'	'

Stockbased_Compensation_Schedu1

Stock-based Compensation (Schedule of Employee Stock-Based Compensation Expense) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	$563	$268	$1,254	$786
Cost of Revenue [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	116	28	215	86
Research and Development [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	71	32	149	92
Selling and Marketing [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	132	65	295	188
General and Administrative [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	244	143	595	420
Operating Expense [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	$447	$240	$1,039	$700

Inventories_net_Details

Inventories, net (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Inventories, net [Abstract]	'	'
Finished goods	$2,635	$1,824
Work-in-process	4,019	2,546
Raw materials	3,582	2,563
Inventory, Net	$10,236	$6,933

Net_Income_Per_Share_Details

Net Income Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:	'	'	'	'
Net income	$5,621	$1,892	$11,753	$4,045
Denominator:	'	'	'	'
Basic	18,056	17,581	17,584	17,638
Diluted	18,754	17,977	18,107	18,000
Net income per share:	'	'	'	'
Basic	$0.31	$0.11	$0.67	$0.23
Diluted	$0.30	$0.11	$0.65	$0.22

Income_Taxes_Details

Income Taxes (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
Income Taxes [Abstract]	'
Change in valuation allowance	($3.70)

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012
Indemnification and Product Warranty:	'	'
Accrued warranty reserves	$60,000	$20,000
Operating Leases:	'	'
2013 (remaining three months of the year)	182,000	'
2014	680,000	'
2015	239,000	'
2016	22,000	'
2017 and after	2,000	'
Total	$1,125,000	'

Bank_Loans_Details

Bank Loans (Details) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Nov. 30, 2004	Nov. 30, 2006	Sep. 30, 2007	Nov. 30, 2004	Nov. 30, 2004
	Loan One [Member]	Loan Two [Member]	Loan Three [Member]	First Two Years [Member]	More Than Two Years [Member]
				Loan One [Member]	Loan One [Member]
Debt Instrument [Line Items]	'	'	'	'	'
Initial term of loan	'10 years	'7 years	'5 years	'	'
Interest rate on loan	'	2.80%	3.68%	2.30%	3.60%
Long-term Debt	$0.50	$0.20	$0.10	'	'

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Related Party Transaction [Line Items]	'	'	'	'
Ownership percentage	17.46%	'	17.46%	'
Hon Hai Precision Industry Co. Ltd. [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Net sales to related party	'	$0.06	'	$0.06
Purchases of raw materials from related party	0.5	0.2	1.2	0.8
Amounts due from related party	'	0.03	'	0.03
Amounts due to related party	$0.40	$0.30	$0.40	$0.30

Fair_Value_of_Financial_instru2

Fair Value of Financial instruments (Details) (Fair Value, Measurements, Recurring [Member], USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified	Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Cash equivalents	$2,277
Total	43,122
Short-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	17,284
Corporate Bond Securities [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	13,153
Long-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	10,408
Fair Value, Inputs, Level 1 [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Cash equivalents	2,277
Total	29,969
Fair Value, Inputs, Level 1 [Member] \| Short-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	17,284
Fair Value, Inputs, Level 1 [Member] \| Corporate Bond Securities [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	'
Fair Value, Inputs, Level 1 [Member] \| Long-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	10,408
Fair Value, Inputs, Level 2 [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Cash equivalents	'
Total	13,153
Fair Value, Inputs, Level 2 [Member] \| Short-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	'
Fair Value, Inputs, Level 2 [Member] \| Corporate Bond Securities [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	13,153
Fair Value, Inputs, Level 2 [Member] \| Long-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	'
Fair Value, Inputs, Level 3 [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Cash equivalents	'
Total	'
Fair Value, Inputs, Level 3 [Member] \| Short-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	'
Fair Value, Inputs, Level 3 [Member] \| Corporate Bond Securities [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	'
Fair Value, Inputs, Level 3 [Member] \| Long-Term Time Deposits [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Investments	'

Geographic_Segment_Information2

Geographic Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Revenues	'	'	'	'	'
Revenues	$23,074	$12,390	$54,266	$34,452	'
Property and Equipment	'	'	'	'	'
Property and Equipment, net	10,292	'	10,292	'	7,708
North America [Member]	'	'	'	'	'
Revenues	'	'	'	'	'
Revenues	13,085	7,184	32,260	20,435	'
Europe [Member]	'	'	'	'	'
Revenues	'	'	'	'	'
Revenues	4,379	2,327	10,519	6,178	'
Asia [Member]	'	'	'	'	'
Revenues	'	'	'	'	'
Revenues	5,610	2,879	11,487	7,839	'
United States [Member]	'	'	'	'	'
Property and Equipment	'	'	'	'	'
Property and Equipment, net	42	'	42	'	43
Taiwan [Member]	'	'	'	'	'
Property and Equipment	'	'	'	'	'
Property and Equipment, net	4,769	'	4,769	'	3,473
China [Member]	'	'	'	'	'
Property and Equipment	'	'	'	'	'
Property and Equipment, net	5,481	'	5,481	'	4,192
Connectivity Products [Member]	'	'	'	'	'
Revenues	'	'	'	'	'
Revenues	17,572	8,307	40,990	24,591	'
Optical Passive Products [Member]	'	'	'	'	'
Revenues	'	'	'	'	'
Revenues	$5,502	$4,083	$13,276	$9,861	'

Subsequent_Event_Details

Subsequent Event (Details)	Sep. 30, 2013	Dec. 31, 2012	Nov. 01, 2013
Subsequent Event (Details)	Sep. 30, 2013	Dec. 31, 2012	Subsequent Event [Member]
Subsequent Event [Line Items]	'	'	'
Common Stock, shares authorized	20,000,000	20,000,000	100,000,000
Stock incentive plan, additional shares authorized	'	'	900,000