XML 71 R61.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Commitments and Contingencies - Additional Information (Detail) $ in Millions |  | 9 Months Ended |
--- | --- | --- | ---
Sep. 19, 2016 USD ($) Installment | Sep. 30, 2017 USD ($) | Dec. 31, 2016 USD ($)
Leases [Abstract] |  |  |
Expiration of non-cancellable operating leases |  | Through 2022 |
Accrued lease commitments expense |  | $ 3.4 |
Estimated sublease income |  | 2.1 |
Funds to be repaid under the agreement | $ 0.3 | $ 0.3 | $ 0.3
Amount received to start-up new facility | $ 1.0 |  |
Interest rate of funds under the agreement | 0.00% |  |
Number of equal quarterly installments | Installment | 20 |  |

X
- Definition Portion of future lease payments accrued as part of 2013 Restructuring Plan. + References No definition available. + Details
Name: | smsi_AccruedLeaseExpenses
Namespace Prefix: | smsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Funds to be repaid under the agreement. + References No definition available. + Details
Name: | smsi_FundsToBeRepaidUnderAgreement
Namespace Prefix: | smsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Interest rate of funds under agreement. + References No definition available. + Details
Name: | smsi_InterestRateOfFundsUnderAgreement
Namespace Prefix: | smsi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of equal quarterly installments. + References No definition available. + Details
Name: | smsi_NumberOfEqualQuarterlyInstallments
Namespace Prefix: | smsi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated income to be received from sublease of office space. + References No definition available. + Details
Name: | smsi_OperatingLeasesExpectedFutureSubleaseIncome
Namespace Prefix: | smsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount received from State of Pennsylvania to help fund the start up of new facility. + References No definition available. + Details
Name: | smsi_ProceedsFromGovernmentGrantForStartUpNewFacility
Namespace Prefix: | smsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition A general description of the nature of the existing leasing arrangements of a lessee for all operating leases including, but not limited to: (1) rental escalation clauses; (2) renewal or purchase options; (3) guarantees or indemnities, if any, (4) restrictions imposed by lease arrangements; (5) unusual provisions or conditions; (6) contingent rentals, if any; and (7) lease expiration dates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 1) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84164451&loc=d3e36991-112694 + Details
Name: | us-gaap_DescriptionOfLesseeLeasingArrangementsOperatingLeases
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration