Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of Fair Value Hierarchy for Warrant Liabilities

The following table presents the Company's fair value hierarchy for its warrant liabilities measured at fair value on a recurring basis (in thousands) as of December 31, 2017:

		Quoted
		Market		Significant
		Prices for		Other		Significant
		Identical		Observable		Unobservable
		Assets		Inputs		Inputs
Warrant liabilities		(Level 1)		(Level 2)		(Level 3)		Total
Balance as of December 31, 2017	$	-	$	-	$	694	$	694

Summary of Fair Value Measurements Valuation Assumptions

The following assumptions were used in determining the fair value of the common stock warrant liabilities valued using the Black-Scholes option pricing model as of December 31, 2017:

		December 31,
		2017
Risk-free interest rate		2.2%-2.2%
Volatility		89%-89.41%
Dividend yield		-	%
Expected term		5.04-5.17
Weighted average fair value	$	24.00

Schedule of Fair Value Level 3 Reconciliation

The following table is a reconciliation for the common stock warrant liabilities measured at fair value using Level 3 unobservable inputs (in thousands):

		Warrant liabilities
Balance as of December 31, 2017	$	694
Change in fair value measurement of warrant liability		(222)
Warrant liability reclassified to stockholders' equity		(472)
Balance as of December 31, 2018	$	-

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following securities that could potentially decrease net income (loss) per share in the future are not included in the determination of diluted income (loss) per share as their effect is anti-dilutive (in thousands):

	Year Ended December 31,
	2018	2017
Outstanding stock options	29	12
Outstanding warrants	437	236
Restricted stock units	9	24
	475	272

Summary of Revenues by Geographic Area

Revenues (included in discontinued operations) by geographic area for the Company's operations are as follows (in thousands):

		Year Ended December 31,
		2018		2017
Europe (1)(2)	$	-	$	364
Canada(1)		-		142
Other(1)(2)		-		5
	$	-	$	511

(1) As a result of the Ferring Asset Purchase Agreement, all revenues have been reflected as discontinued operations in the statement of operations for all periods presented.
(2) Amounts included have not been broken out by country as it is impractical to do so given the nature and structure of the license agreements which cover multiple countries and/or territories. The basis for attributing product sales and royalty revenues from external customers to individual countries was based on the geographic location of the end user customer.