XML 32 R21.htm IDEA: XBRL DOCUMENT v3.20.2
Summary of Significant Accounting Policies - Additional Information (Detail)
 3 Months Ended 6 Months Ended
May 12, 2020
$ / shares
Aug. 08, 2019
$ / shares
Jun. 30, 2020
USD ($)
shares
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Segment
shares
Jun. 30, 2019
USD ($)
shares
Mar. 31, 2020
shares
Dec. 31, 2019
USD ($)
Summary Of Significant Accounting Policies [Line Items]                
Net loss     $ (2,586,000) $ (4,093,000) $ (10,763,000) $ (8,974,000)    
Cash     8,764,000   8,764,000     $ 8,791,000
Working capital     8,700,000   8,700,000      
Accumulated deficit     (68,345,000)   $ (68,345,000)     (57,582,000)
Closing bid price per NASDAQ listing notification letter | $ / shares   $ 1.00            
Consecutive business days for closing bid price of common stock   30 days            
Stock market granted additional calendar days   180 days            
Closing bid price of common stock per NASDAQ listing notification letter | $ / shares | $ / shares   $ 1.00            
Number of consecutive business days required to regain compliance   10 days            
Reverse stock split, description         On May 12, 2020, the Company’s stockholders approved and adopted an amendment to the Company’s Restated Certificate of Incorporation to effect a reverse stock split of the Company’s common stock at a ratio ranging from 1 share-for-10 shares up to a ratio of 1 share-for-30 shares, which ratio will be selected by the Company’s Board of Directors and set forth in a public announcement. Management may effect the reverse stock split at any time prior to December 31, 2020. If the Company’s stock price does not meet or exceed $1.00 per share prior to the compliance deadline, management expects to effect the reverse stock split in order to regain compliance.      
Cash, cash equivalents and restricted cash, maturity period         three months or less      
Cash equivalents or restricted cash     $ 0   $ 0     $ 0
Number of operating business segments | Segment         1      
Impairment of tangible assets         $ 0      
Antidilutive securities excluded from computation of earnings per share, amount | shares         9,481,958 8,233,947    
2014 Stock Incentive Plan [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Increase in number of shares of common stock authorized for issuance | shares             518,693  
Common stock, number of shares reserved for issuance | shares     401,648   401,648      
2014 Employee Stock Purchase Plan [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Increase in number of shares of common stock authorized for issuance | shares             129,673  
Common stock, number of shares reserved for issuance | shares     433,394   433,394      
Reverse Stock Split [Member] | Minimum [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Stock split, conversion ratio 0.1              
Reverse Stock Split [Member] | Maximum [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Stock split, conversion ratio 0.3              
Stock price per share | $ / shares $ 1.00              
Otic Pharma [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Ownership percentage     100.00%   100.00%      
Otic Pharma, Inc. [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Ownership percentage     100.00%   100.00%