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Pay vs Performance Disclosure - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pay vs Performance Disclosure      
Pay vs Performance Disclosure, Table
Pay versus performance table
(a)(b)(c)(d)(e)(f)(h)
YearSummary compensation table total for PEOCompensation actually paid to PEOAverage summary compensation table total for non-PEO NEOs (1)Average compensation actually paid to non-PEO NEOs (1)Value of initial fixed $100 investment based on Total stockholder return Net income (loss)
(in thousands)
2023$1,261,470 $1,413,487 $769,679 $734,407 $36 $(18,713)
2022$2,170,236 $(653,639)$974,614 $(55,170)$33 $(23,184)
2021$1,594,394 $3,153,022 $776,134 $1,383,313 $178 $(15,172)
    
Named Executive Officers, Footnote
This section is included to comply with the provisions of Item 402(v) of Regulation S-K. For a more comprehensive analysis of our compensation philosophy please see the General Compensation Philosophy section of this filing. In the table and footnotes below, “PEO” refers to our principal executive officer, Charles D. Goodwin.
Reflects average compensation amounts for our non-PEO named executive officers for the respective years shown. Moshe Citronowicz, Todd Hornsby, Matthew Hill and Tara Semb are the non-PEO named executive officers for the 2023 year presented. 		Moshe Citronowicz, Todd Hornsby and Tara Semb are the non-PEO named executive officers for the 2022 and 2021 years presented. Moshe Citronowicz, Todd Hornsby and Tara Semb are the non-PEO named executive officers for the 2022 and 2021 years presented
PEO Total Compensation Amount $ 1,261,470 $ 2,170,236 $ 1,594,394
PEO Actually Paid Compensation Amount $ 1,413,487 (653,639) 3,153,022
Adjustment To PEO Compensation, Footnote The following table summarizes the adjustments from summary table total compensation to compensation actually paid:
PEONon-PEO NEOs
202320222021202320222021
Summary compensation table total compensation$1,261,470 $2,170,236 $1,594,394 $769,679 $974,614 $776,134 
Grant date fair value of awards granted during the year(448,335)(1,664,793)(701,420)(164,820)(612,023)(257,861)
Fair value of awards granted during the year that are outstanding and unvested as of year-end493,290 255,114 1,001,366 116,387 93,787 368,129 
Change in fair value from prior year-end to current year-end of awards granted in prior years that were outstanding and unvested as of year-end65,731 (1,156,271)1,034,657 15,509 (425,076)356,305 
Change in fair value from prior year-end to vesting date of awards granted in prior years that vested during the year41,331 (257,925)224,025 660 (86,472)140,606 
Fair value of awards granted during the year that vested during the year— — — 8,192 — — 
Prior year-end fair value of awards granted in prior years that were forfeited during the year— — — (11,200)— — 
Compensation actually paid$1,413,487 $(653,639)$3,153,022 $734,407 $(55,170)$1,383,313 
Stock option grant date fair values are calculated based on the Black-Scholes option pricing model as of the grant date. Adjustments have been made using stock option fair values as of each measurement date using the stock price as of the measurement date and updated assumptions (i.e., term, volatility, risk free rates) as of the measurement date. The change in stock price was the primary driver for the adjustments in the table above. 		   
Non-PEO NEO Average Total Compensation Amount $ 769,679 974,614 776,134
Non-PEO NEO Average Compensation Actually Paid Amount $ 734,407 (55,170) 1,383,313
Adjustment to Non-PEO NEO Compensation Footnote The following table summarizes the adjustments from summary table total compensation to compensation actually paid:
PEONon-PEO NEOs
202320222021202320222021
Summary compensation table total compensation$1,261,470 $2,170,236 $1,594,394 $769,679 $974,614 $776,134 
Grant date fair value of awards granted during the year(448,335)(1,664,793)(701,420)(164,820)(612,023)(257,861)
Fair value of awards granted during the year that are outstanding and unvested as of year-end493,290 255,114 1,001,366 116,387 93,787 368,129 
Change in fair value from prior year-end to current year-end of awards granted in prior years that were outstanding and unvested as of year-end65,731 (1,156,271)1,034,657 15,509 (425,076)356,305 
Change in fair value from prior year-end to vesting date of awards granted in prior years that vested during the year41,331 (257,925)224,025 660 (86,472)140,606 
Fair value of awards granted during the year that vested during the year— — — 8,192 — — 
Prior year-end fair value of awards granted in prior years that were forfeited during the year— — — (11,200)— — 
Compensation actually paid$1,413,487 $(653,639)$3,153,022 $734,407 $(55,170)$1,383,313 
Stock option grant date fair values are calculated based on the Black-Scholes option pricing model as of the grant date. Adjustments have been made using stock option fair values as of each measurement date using the stock price as of the measurement date and updated assumptions (i.e., term, volatility, risk free rates) as of the measurement date. The change in stock price was the primary driver for the adjustments in the table above. 		   
Compensation Actually Paid vs. Total Shareholder Return
The following table presents a comparison of our actual compensation paid to NEOs versus our total stockholder return, net losses:

(in thousands except per share data)202320222023 vs 2022 Change20212022 vs 2021 Change
Total stockholder return (change in stock price)$2.62 $2.34 12.0 %$12.82 -81.7 %
Net loss attributable to stockholders$(18,713)$(23,184)19.3 %$(15,172)-52.8 %
Actual compensation paid to NEOs$3,617 $(819)541.6 %$7,303 -111.2 %
    
Compensation Actually Paid vs. Net Income
The following table presents a comparison of our actual compensation paid to NEOs versus our total stockholder return, net losses:

(in thousands except per share data)202320222023 vs 2022 Change20212022 vs 2021 Change
Total stockholder return (change in stock price)$2.62 $2.34 12.0 %$12.82 -81.7 %
Net loss attributable to stockholders$(18,713)$(23,184)19.3 %$(15,172)-52.8 %
Actual compensation paid to NEOs$3,617 $(819)541.6 %$7,303 -111.2 %
    
Total Shareholder Return Amount $ 36 33 178
Net Income (Loss) $ (18,713,000) $ (23,184,000) $ (15,172,000)
PEO Name Charles D. Goodwin    
Shareholder Return, Per Share $ 2.62 $ 2.34 $ 12.82
Shareholder Return, Percent Change 12.00% (81.70%)  
Net Income (Loss), Percent Change 19.30% (52.80%)  
NEO Actually Paid Compensation Amount $ 3,617,000 $ (819,000) $ 7,303,000
NEO Actually Paid Compensation, Percent Change 541.60% (111.20%)  
PEO | Equity Awards Granted During The Year [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount $ (448,335) $ (1,664,793) (701,420)
PEO | Equity Awards Granted During The Year, Outstanding And Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 493,290 255,114 1,001,366
PEO | Equity Awards Granted In Prior Years, Outstanding And Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 65,731 (1,156,271) 1,034,657
PEO | Equity Awards Granted In Prior Years, Vested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 41,331 (257,925) 224,025
PEO | Equity Awards Granted During The Year, Vested      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 0 0 0
PEO | Equity Awards Granted In Prior Years, Forfeited [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 0 0 0
Non-PEO NEO | Equity Awards Granted During The Year [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount (164,820) (612,023) (257,861)
Non-PEO NEO | Equity Awards Granted During The Year, Outstanding And Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 116,387 93,787 368,129
Non-PEO NEO | Equity Awards Granted In Prior Years, Outstanding And Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 15,509 (425,076) 356,305
Non-PEO NEO | Equity Awards Granted In Prior Years, Vested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 660 (86,472) 140,606
Non-PEO NEO | Equity Awards Granted During The Year, Vested      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 8,192 0 0
Non-PEO NEO | Equity Awards Granted In Prior Years, Forfeited [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount $ (11,200) $ 0 $ 0