XML 37 R23.htm IDEA: XBRL DOCUMENT
v3.19.1

Commitments and Contingencies (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Supplemental Cash Flow Information Related to Leases | The following table contains supplemental cash flow information related to operating leases as of March 31, 2019.
|  | (in thousands) |
Cash paid within operating cash flows |  | $ | 459 |
Right-of-use assets recognized in exchange for new lease obligations |  |  | — |
Schedule of Supplemental Balance Sheet Information Related to Leases | The following table contains supplemental balance sheet information related to operating leases, as of March 31, 2019.
|  | (in thousands) |
Other assets, net (Right-of-use assets) |  | $ | 6,426 |
Accrued lease liability, current |  |  | 1,118 |
Accrued lease liability, long-term |  |  | 6,918 |
Total lease liabilities |  | $ | 8,036 |
Weighted average remaining lease term |  |  | 5.3 years |
Weighted average discount rate |  |  | 10 | %
Schedule Of Maturities Of Operating Lease Liabilities | Maturities of the Company’s operating lease liabilities as of March 31, 2019 are summarized in the table below.
Year |  | Amount |
|  | (in thousands) |
2019 |  | $ | 1,385 |
2020 |  |  | 1,892 |
2021 |  |  | 1,941 |
2022 |  |  | 1,991 |
2023 |  |  | 1,729 |
2024 and after |  |  | 1,460 |
Total lease payments |  |  | 10,398 |
Less: imputed interest |  |  | (2,362 | )
Total operating lease liabilities |  | $ | 8,036 |

X
- Definition Schedule Of Supplemental Balance Sheet Information Related To Leases Table [Text Block] + References No definition available. + Details
Name: | hsgx_ScheduleOfSupplementalBalanceSheetInformationRelatedToLeasesTableTextBlock
Namespace Prefix: | hsgx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of supplemental cash flow information related to leases table. + References No definition available. + Details
Name: | hsgx_ScheduleOfSupplementalCashFlowInformationRelatedToLeasesTableTextBlock
Namespace Prefix: | hsgx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration