XML 99 R87.htm IDEA: XBRL DOCUMENT v3.22.2
Stock Plans (Details)
12 Months Ended
Dec. 31, 2021
$ / shares
Stock Plans (Details)  
Weighted-average Grant Date Fair Value $ 4.52
Expected Dividend Yield 0.00%
Expected Volatility 96.35%
Risk-free Interest Rate 0.09%
Expected Term (years) 4 years
Expected Forfeiture 50.00%