XML 33 R23.htm IDEA: XBRL DOCUMENT v3.5.0.2

The Company and Summary of Significant Accounting Policies - Revenue Recognition & Per Share (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Revenue Recognition
Threshold purchase return percentage by distributors for slow, non-moving or obsolete inventory	10.00%
Specified period for return of threshold percentage of purchases by distributors for slow, non-moving or obsolete inventory	6 months
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	16,814	9,322
Options
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	5,575	8,635
Employee stock purchase plan
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	476	445
Unvested restricted common stock units
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,501	242
Convertible debt
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	9,262

X

- Definition

Represents the period within which the threshold percentage of purchases can be returned by the distributors for credit.

+ References

No definition available.

+ Details

Name:	mosy_SpecifiedPeriodForThresholdPurchaseReturnPercentageByDistributors
Namespace Prefix:	mosy_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the threshold percentage of purchases that can be returned by the distributors for credit during a specified period.

+ References

No definition available.

+ Details

Name:	mosy_ThresholdPurchaseReturnPercentageByDistributorsForSpecifiedPeriod
Namespace Prefix:	mosy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_EarningsPerShareAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_RevenueRecognitionAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=mosy_EmployeeAndDirectorsStockOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=us-gaap_EmployeeStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: