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Accounts Receivable	3 Months Ended
Accounts Receivable	Mar. 31, 2019
Receivables [Abstract]
Accounts Receivable	Accounts Receivable As of March 31, 2019, the Company had accounts receivable of $1,956 thousand of which $1,946 thousand relates to royalty revenue from the sales of NARCAN®. As of December 31, 2018 the Company had accounts receivable of $4.5 million, which relates to royalty revenue from the sales of NARCAN®.