XML 31 R19.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 2 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Notes Tables |
Valuation Allowances and Reserves [Table Text Block] |
|  | Product Returns |  |  | Distributor Fees |  |  | GPO Fees, Rebates and Chargebacks |  |  | Total |
Balance at December 31, 2016 |  | $ | 49 |  |  | $ | 72 |  |  | $ | 221 |  |  | $ | 342 |
Provision |  |  | 473 |  |  |  | 2,027 |  |  |  | 16,752 |  |  |  | 19,252 |
Payments/credits |  |  | (1 | ) |  |  | (1,519 | ) |  |  | (8,755 | ) |  |  | (10,275 | )
Balance at December 31, 2017 |  | $ | 521 |  |  | $ | 580 |  |  | $ | 8,218 |  |  | $ | 9,319 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
|  | December 31 , |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Stock options outstanding |  |  | 13,463 |  |  |  | 11,845 |  |  |  | 8,435 |
Warrants outstanding |  |  | 620 |  |  |  | 600 |  |  |  | 3,565 |
Shares of c ommon stock underlying Convertible Notes outstanding |  |  | 7,983 |  |  |  | 7,521 |  |  |  | 7,087 |

X
- Definition Tabular disclosure of a schedule of allowance and reserve accounts where the valuation and qualifying accounts are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References No definition available. + Details
Name: | hrtx_ValuationAllowancesAndReservesTableTextBlock
Namespace Prefix: | hrtx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: 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_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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