Note 3 - Supplemental Balance Sheet and Cash Flow Information (Details Textual)

v3.20.2

Note 3 - Supplemental Balance Sheet and Cash Flow Information (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Available-for-sale Securities, Total	$ 87,800	$ 38,200
Amortization of Intangible Assets, Total	61,095	58,715
Other Assets, Noncurrent, Total	13,522	5,668
Developed Technology Rights [Member] \| Cost of Sales [Member]
Amortization of Intangible Assets, Total	34,500	33,300	$ 25,300
Trade Names, Customer Relationships, Non-Compete Agreements, and Patents [Member] \| Selling, General and Administrative Expenses [Member]
Amortization of Intangible Assets, Total	26,600	25,400	$ 21,600
Other Noncurrent Assets [Member]
Inventory, Finished Goods, Net of Reserves, Non-current	4,646	3,239
ChemoCentryx, Inc (CCXI) [Member]
Available-for-sale Equity Securities, Amortized Cost Basis, Total	$ 6,600	$ 18,800
ChemoCentryx, Inc (CCXI) [Member]
Share Price (in dollars per share)	$ 9.30	$ 57.54

- Definition

Non-current amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

+ References

No definition available.

+ Details

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Namespace Prefix:	tech_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

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Period Type:	duration

- Definition

This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

+ Details

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

- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

No definition available.

+ Details

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

- Definition

Amount of noncurrent assets classified as other.

+ 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 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

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- Details

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- Details

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Annual report pursuant to Section 13 and 15(d)

Note 3 - Supplemental Balance Sheet and Cash Flow Information (Details Textual)