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Stock-Based Compensation - (Summary of Restricted Stock Units Activity) (Details) - Unvested Restricted Stock Units [Member]
12 Months Ended
Dec. 31, 2024
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options Activity  
Beginning balance, Unvested Number of Shares | shares 105,000
Granted, Number of Shares | shares 0
Vested, Number of Shares | shares (21,000)
Expired | shares 0
Ending balance, Unvested Number of Shares | shares 84,000
Beginning balance, Unvested, Weighted-Average Grant-Date Fair Value | $ / shares $ 4.11
Granted, Weighted-Average Grant-Date Fair Value | $ / shares 0
Vested, Weighted-Average Grant-Date Fair Value | $ / shares 4.11
Forfeited/canceled, Weighted-Average Grant-Date Fair Value | $ / shares 0
Ending balance, Unvested, Weighted-Average Grant-Date Fair Value | $ / shares $ 4.11