XML 50 R41.htm IDEA: XBRL DOCUMENT v3.22.1

SCHEDULE OF INVESTMENT (Details)	3 Months Ended
	Mar. 31, 2022 USD ($)
Melt Pharmaceuticals, Inc. [Member]
Net Investment Income [Line Items]
Cost basis	$ 19,310,000
Share of Equity Method Losses	(11,063,000)
Paid in Kind Interest	1,021,000
In Substance Capital Contributions	(1,021,000)
Net carrying value	8,247,000
Common Stock [Member] | Melt Pharmaceuticals, Inc. [Member]
Net Investment Income [Line Items]
Cost basis	5,810,000
Share of Equity Method Losses	(5,810,000)
Paid in Kind Interest
Common Stock [Member] | Surface Ophthalmics, Inc. [Member]
Net Investment Income [Line Items]
Cost basis	5,320,000
Share of Equity Method Losses	(5,320,000)
Net carrying value
Loan [Member] | Melt Pharmaceuticals, Inc. [Member]
Net Investment Income [Line Items]
Cost basis	13,500,000
Share of Equity Method Losses	(5,253,000)
Paid in Kind Interest	1,021,000
In Substance Capital Contributions	(1,021,000)
Net carrying value	$ 8,247,000

X

- Definition

Investment paid in kind interest.

+ References

No definition available.

+ Details

Name:	HROW_InvestmentPaidInKindInterest
Namespace Prefix:	HROW_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_EquityMethodInvestmentAggregateCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of funds committed to investment company from investors.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 205
-Section 50
-Paragraph 25
-URI https://asc.fasb.org/extlink&oid=25866437&loc=d3e10491-115837

+ Details

Name:	us-gaap_InvestmentCompanyCommittedCapital
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Cost of the investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

+ Details

Name:	us-gaap_InvestmentOwnedAtCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(h))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

Name:	us-gaap_Investments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

Name:	dei_LegalEntityAxis=HROW_MeltPharmaceuticalsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=HROW_SurfaceOphthalmicsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=HROW_LoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: