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Collaborative Research, Development, and License Agreements - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended 140 Months Ended 166 Months Ended
Dec. 05, 2022
Feb. 22, 2022
Mar. 31, 2022
Jan. 31, 2022
Mar. 31, 2021
Jan. 31, 2021
May 31, 2011
Mar. 31, 2009
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2022
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Total Revenues                 $ 131,000 $ 0 $ 208,000 $ 0              
Sales Based Royalties [Member]                                      
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Total Revenues                 61,000                    
BICO Group AB [Member]                                      
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Nonrefundable upfront fee paid   $ 1,500,000                                  
Total Revenues   $ 1,500,000             $ 131,000   208,000                
University of Missouri [Member]                                      
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Royalty fees percentage minimum               1.00%                      
Royalty fees percentage maximum               3.00%                      
Minimum annual royalty paid       $ 25,000   $ 25,000                          
Excess of minimum annual royalties payment     $ 0   $ 0                            
Upfront payment $ 50,000,000                   $ 0         $ 0      
University of Missouri [Member] | Sublicense Agreements [Member]                                      
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Percentage of royalty revenue from sublicensee                     3.00%                
Clemson University [Member]                                      
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Minimum annual royalty paid                         $ 40,000 $ 40,000          
Upfront payment                     $ 0       $ 0        
Minimum annual royalty payment due                                 $ 40,000 $ 20,000 $ 20,000
Clemson University [Member] | Sublicense Agreements [Member]                                      
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Percentage of royalty revenue from sublicensee                     40.00%                
Clemson University [Member] | Licensing Agreements [Member]                                      
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                                      
Royalty fees percentage minimum             1.50%                        
Royalty fees percentage maximum             3.00%                        
Expected expiration year of license agreement             2024-05