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Significant Accounting Policies (Tables)

6 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedules of Concentration of Risk, by Risk Factor

Total collaborative research and development revenue and royalty income from customers that accounted for greater than 10% of total revenues for the six months ended December 31, 2018 and for the years ended June 30, 2018, 2017 and 2016 are summarized in the following table:

		Six Months Ended
		December 31,				Year Ended June 30,
Customer / Category		2018				2018				2017				2016
Ocumension Therapeutics			59	%			*				*				*
Alimera Sciences			21	%			24	%			*				14	%
Bausch & Lomb			16	%			35	%			13	%			77	%
Feasibility studies			*				36	%			*				*
Pfizer			*				*				74	%			*

* Less than 10%

Potentially Dilutive Securities Excluded from Computation of Diluted Weighted-Average Shares

Outstanding potential Common Stock equivalents excluded from the calculation of diluted earnings per share because the effect would have been anti-dilutive were as follows:

		Six Months
		Ended
		December 31,				Year Ended June 30,
		2018				2018				2017				2016
Stock options			8,139,377				7,750,244				6,895,685				4,981,421
Warrants			486,812				20,671,036				623,605				623,605
Restricted stock units			1,090,213				1,398,129				948,500				—
Performance stock units			370,000				466,668				210,000				—
Deferred stock units			35,418				35,001				—				—
			10,121,820				30,321,078				8,677,790				5,605,026

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Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

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Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.

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