n/a

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For an entity that discloses a concentration risk, this concepts represents the number of items related to that concentration risk.

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No definition available.

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The number of wholly-owned subsidiaries.

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The term after the expiry date of the produce upon which wholesalers may return expired products.

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No definition available.

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The term prior to the expiry date of the product upon which wholesalers may return expired products.

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Disclosure of information related to accounting policies.

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No definition available.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-SubTopic 35
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-Paragraph 1
-Subparagraph (b)
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Amount of allowance for credit loss on accounts receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (a)
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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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No definition available.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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No definition available.

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No definition available.

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No definition available.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Summary of significant accounting policies (Details)	3 Months Ended								12 Months Ended
Summary of significant accounting policies (Details)	Dec. 31, 2019 USD ($) subsidiary	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) segment subsidiary customer	Dec. 31, 2018 USD ($) customer	Dec. 31, 2017 USD ($) customer
Summary of significant accounting policies
Number of operating segments \| segment									1
Concentration of credit risk;
Allowance for doubtful accounts	$ 0				$ 0				$ 0	$ 0
Impairment of long-lived assets
Impairment charges									0	0	$ 0
Disaggregation of revenue
Revenues	16,832,000	$ 17,540,000	$ 15,643,000	$ 14,634,000	15,393,000	$ 12,503,000	$ 11,363,000	$ 10,729,000	64,649,000	49,988,000	27,132,000
Contract assets					0					0
Contract liability	0				$ 0				$ 0	0
Product returns
Return time period for expired product prior to expiry date									6 months
Return time period for expired product after expiry date									12 months
Advertising costs
Advertising costs									$ 0	$ 600,000	$ 400,000
Income taxes
Deferred tax assets, net of valuation allowance	0								0
Other Current Assets
Disaggregation of revenue
Contract assets	$ 27,000								$ 27,000
Accounts Receivable \| Customer Concentration Risk
Concentration of credit risk;
Concentration Risk, Number \| customer									13	14
Accounts Receivable \| Customer Concentration Risk \| Major Customers
Concentration of credit risk;
Concentration Risk, Number \| customer									3	3
Concentration Risk, Percentage									96.00%	96.00%
Revenues And Deferred Revenues \| Customer Concentration Risk
Concentration of credit risk;
Concentration Risk, Number \| customer									15	15	14
Revenues And Deferred Revenues \| Customer Concentration Risk \| Major Customers
Concentration of credit risk;
Concentration Risk, Number \| customer									3	3	3
Concentration Risk, Percentage									94.00%	93.00%	93.00%
Adzenys XR-ODT
Disaggregation of revenue
Revenues									$ 31,213,000	$ 26,631,000	$ 20,377,000
Cotempla XR-ODT
Intangible assets
Intangible assets - Useful life									15 years
Disaggregation of revenue
Revenues									$ 25,649,000	19,014,000	1,590,000
Adzenys ER
Intangible assets
Intangible assets - Useful life									15 years
Disaggregation of revenue
Revenues									$ 834,000	(27,000)
Generic Tussionex
Intangible assets
Intangible assets - Useful life									10 years
Disaggregation of revenue
Revenues									$ 6,953,000	$ 4,370,000	$ 5,165,000
Minimum
Property and equipment
Property and equipment - Useful life									3 years
Intangible assets
Intangible assets - Useful life									10 years
Maximum
Property and equipment
Property and equipment - Useful life									10 years
Intangible assets
Intangible assets - Useful life									20 years
Wholly-owned subsidiaries
Summary of significant accounting policies
Number of wholly-owned subsidiaries \| subsidiary	4								4