v3.19.2

Note 4 - Revenue (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Contract with Customer, Asset and Liability [Table Text Block]

		Balance at Beginning of the Period				Additions				Deductions				Balance at the end of the Period
		(in thousands)
Contract liability:
Deferred revenue		$	3,463			$	131			$	(280	)		$	3,314

Disaggregation of Revenue [Table Text Block]

		Three months ended June 30, 201 9				Six months ended June 30, 201 9
Amounts included in contract liabilities at the beginning of the period:
Performance obligations satisfied – Amended Agreements		$	79			$	158
New activities in the period from performance obligations satisfied:
Performance obligations satisfied – Amended Agreements			649				677
Total revenue from performance obligations satisfied			728				835
Royalty revenue			158				269
Net product sales			55				102
Total revenue		$	941			$	1,206

X

- Definition

Tabular disclosure of contract balances and changes in contract balances.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045

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Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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