Quarterly report pursuant to Section 13 or 15(d)

Description of Business and Basis of Presentation - Additional Information (Detail)

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Description of Business and Basis of Presentation - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 22, 2022
Apr. 28, 2022
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Jun. 27, 2022
Dec. 31, 2020
Basis Of Presentation [Line Items]                    
Series F Preferred stock, shares issued     0     0   0    
Common Stock, Shares, Issued     7,144,000     7,144,000   7,142,000    
Proceeds from the sale of common stock           $ 5,635 $ 13,291      
Net loss     $ (8,387) $ (3,276)   (18,773) (10,879)      
Net increase in operating assets a liabilities           6,500        
Prepaid expenses and other current assets     2,648     2,648   $ 2,012    
Working capital     20,100     20,100   35,500    
Cash and cash equivalents     9,960     9,960   29,972    
Cash, cash equivalents, and restricted cash     9,960 $ 33,589   9,960 33,589 30,175   $ 17,876
Net cash and cash equivalents used in investing activities           (3,256) (396) 3,300    
Accounts receivable, net     $ 4,846     4,846   4,238    
Net cash used in operating activities           $ (21,179) $ (13,606)      
Net decreases in operating assets               21,200    
Reverse stock split   one-for-twenty-five                
SWK Loan                    
Basis Of Presentation [Line Items]                    
Proceed from term loan offering               1,000    
Cyber Incident                    
Basis Of Presentation [Line Items]                    
Prepaid expenses and other current assets               $ 400    
Private Placement [Member]                    
Basis Of Presentation [Line Items]                    
Proceeds from offering, net of underwriting discounts and commissions         $ 5,600          
Securities Purchase Agreement [Member]                    
Basis Of Presentation [Line Items]                    
Warrant issued                 726,660  
Common Stock, Shares, Issued                 678,745  
Gross proceeds from transactions and other transactions                 $ 6,500  
Securities Purchase Agreement [Member] | Private Placement [Member]                    
Basis Of Presentation [Line Items]                    
Common Stock, Shares, Issued                 1,405,405  
Membership Interest Purchase Agreement [Member]                    
Basis Of Presentation [Line Items]                    
Purchase price payable, description the Company acquired all of the issued and outstanding membership interests of Med-Fiber on the terms and subject to the conditions set forth in the Purchase Agreement, for a purchase price equal to $1,320,000, plus, subject to the satisfaction of certain milestones, additional earn-out consideration in an aggregate amount of up to $880,000. Med-Fiber was engaged in the business of manufacturing and supplying infrared transmitting fiber optics for laser power delivery applications and activities related thereto. The purchase was accounted for as an asset acquisition as substantially all of the fair value of the gross assets acquired is concentrated in a group of similar assets. The $2,220,000 is included as a component of property, plant, and equipment in the consolidated balance sheet as of September 30, 2022.