Subsequent Events (Textual).

No definition available.

Name:	HAPP_SubsequentEventsTextualAbstract
Namespace Prefix:	HAPP_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ 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(19)(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: 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(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_ShortTermBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=HAPP_IndustrialBankCoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=HAPP_RmbMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=HAPP_PostalSavingBankOfChinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details)	May 04, 2018 USD ($)	May 23, 2017 USD ($)	May 08, 2017 USD ($)	Jun. 28, 2019 USD ($)	Jun. 28, 2019 CNY (¥)	Mar. 31, 2019 USD ($)	May 04, 2018 CNY (¥)	Mar. 31, 2018 USD ($)	May 23, 2017 CNY (¥)	May 08, 2017 CNY (¥)
Subsequent Events (Textual)
Loan agreement amount						$ 1,039,578		$ 1,494,887
Industrial Bank Co., Ltd [Member]
Subsequent Events (Textual)
Loan agreement amount	$ 1,039,578		$ 1,113,214			1,039,578		1,113,214
Due date	Apr. 21, 2019		May 07, 2018
Industrial Bank Co., Ltd [Member] \| RMB [Member]
Subsequent Events (Textual)
Loan agreement amount \| ¥							¥ 7,000,000			¥ 7,000,000
Postal Saving Bank of China [Member]
Subsequent Events (Textual)
Loan agreement amount		$ 380,000						$ 381,673
Due date		May 22, 2020
Postal Saving Bank of China [Member] \| RMB [Member]
Subsequent Events (Textual)
Loan agreement amount \| ¥									¥ 2,400,000
Postal Saving Bank of China [Member] \| Subsequent Event [Member]
Subsequent Events (Textual)
Loan agreement amount				$ 581,844
Interest rate				5.66%	5.66%
Postal Saving Bank of China [Member] \| Subsequent Event [Member] \| RMB [Member]
Subsequent Events (Textual)
Loan agreement amount \| ¥					¥ 4,000,000