XML 50 R40.htm IDEA: XBRL DOCUMENT v3.22.2.2

Note 6 - Fair Value - Reconciliation of Level 3 Assets Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Balance	$ 577,380	$ 402,853	$ 457,557	$ 350,048
Purchase of investments	94,627	98,592	348,347	217,252
Warrants and equity received and classified as Level 3	964	1,394	2,441	2,313
Principal payments received on investments	(26,960)	53,588	114,433	119,260
Proceeds from sale of investments	(6,126)	1,553	49,552	3,307
Net realized (loss) gain on investments	(8,195)	1,344	(9,094)	(2,469)
Unrealized appreciation (depreciation) included in earnings	4,227	3,925	2,720	8,894
Transfer out of Level 3	(1,117)	0	(1,117)	(120)
Transfer out of debt investments	0		0
Other	(541)	(1,606)	(2,610)	(1,990)
Balance	634,259	451,361	634,259	451,361
Principal payments received on investments	26,960	(53,588)	(114,433)	(119,260)
Proceeds from sale of investments	6,126	(1,553)	(49,552)	(3,307)
Debt [Member]
Balance	551,560	385,814	437,317	333,495
Purchase of investments	94,627	98,592	348,097	217,252
Warrants and equity received and classified as Level 3	0	0	0	0
Principal payments received on investments	(26,929)	53,588	114,120	119,260
Proceeds from sale of investments	(6,088)	34	49,088	135
Net realized (loss) gain on investments	(8,492)	(40)	(8,492)	(5,035)
Unrealized appreciation (depreciation) included in earnings	8,095	798	1,128	5,609
Transfer out of Level 3	0		0	0
Transfer out of debt investments	(3,200)		(3,200)
Other	(541)	(1,606)	(2,610)	(1,990)
Balance	609,032	429,936	609,032	429,936
Principal payments received on investments	26,929	(53,588)	(114,120)	(119,260)
Proceeds from sale of investments	6,088	(34)	(49,088)	(135)
Warrant [Member]
Balance	25,167	15,102	19,837	12,736
Purchase of investments	0	0	0	0
Warrants and equity received and classified as Level 3	964	1,394	2,441	2,313
Principal payments received on investments	0	0	0	0
Proceeds from sale of investments	(38)	1,519	464	3,159
Net realized (loss) gain on investments	266	1,384	535	2,566
Unrealized appreciation (depreciation) included in earnings	(3,348)	3,353	662	5,329
Transfer out of Level 3	(1,117)		(1,117)	(71)
Transfer out of debt investments	0		0
Other	0	0	0	0
Balance	21,894	19,714	21,894	19,714
Principal payments received on investments	(0)	0	0	0
Proceeds from sale of investments	38	(1,519)	(464)	(3,159)
Equity Securities [Member]
Balance	453	237	203	2,117
Purchase of investments	0	0	250	0
Warrants and equity received and classified as Level 3	0	0	0	0
Principal payments received on investments	0	0	0	0
Proceeds from sale of investments	0	0	0	0
Net realized (loss) gain on investments	0	0	0	0
Unrealized appreciation (depreciation) included in earnings	(420)	149	(420)	(1,682)
Transfer out of Level 3	0		0	(49)
Transfer out of debt investments	2,000		2,000
Other	0	0	0	0
Balance	2,033	386	2,033	386
Principal payments received on investments	(0)	0	0	0
Proceeds from sale of investments	(0)	0	0	0
Other Investments [Member]
Balance	200	1,700	200	1,700
Purchase of investments	0	0	0	0
Warrants and equity received and classified as Level 3	0	0	0	0
Principal payments received on investments	(31)	0	313	0
Proceeds from sale of investments	0	0	0	13
Net realized (loss) gain on investments	31	0	(1,137)	0
Unrealized appreciation (depreciation) included in earnings	(100)	(375)	1,350	(362)
Transfer out of Level 3				0
Transfer out of debt investments	1,200		1,200
Other	0	0	0	0
Balance	1,300	1,325	1,300	1,325
Principal payments received on investments	31	0	(313)	0
Proceeds from sale of investments	$ (0)	$ 0	$ 0	$ (13)

X

- Definition

Amount of unrealized appreciation (depreciation) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

No definition available.

+ Details

Name:	hrzn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAppreciationDepreciationIncludedInEarnings
Namespace Prefix:	hrzn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of other increase (decrease) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

No definition available.

+ Details

Name:	hrzn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetOtherPeriodIncreaseDecrease
Namespace Prefix:	hrzn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of realized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

No definition available.

+ Details

Name:	hrzn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarnings
Namespace Prefix:	hrzn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of transfer of financial instrument classified as an asset between investments.

+ References

No definition available.

+ Details

Name:	hrzn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersBetweenInvestments
Namespace Prefix:	hrzn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of received warrants and equity received of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

No definition available.

+ Details

Name:	hrzn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetWarrantsAndEquityReceived
Namespace Prefix:	hrzn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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

X

- Definition

Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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

X

- Definition

Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_DebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_OtherInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: