Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Expenses:
Research and development	$ 4,410	$ 3,461
General and administrative	4,669	3,242
Total operating expenses	9,079	6,703
Operating loss	(9,079)	(6,703)
Other (expense) income:
Interest income	50	89
Interest expense	(41)	(44)
Other income, net	109	124
Total other (expense) income, net	118	169
Net loss	$ (8,961)	$ (6,534)
Net loss per common share
Basic and diluted (in dollars per share)	$ (0.51)	$ (0.48)
Weighted average number of common shares outstanding
Basic and diluted (in shares)	17,695	13,697

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256