Equity Incentive Plans (Assumptions Used in the Black-Scholes Model) (Details) - Common Stock Options [Member]	Mar. 31, 2023 USD ($)
Measurement Input, Expected Dividend Rate [Member]
Fair value input, equity securities	0
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Fair value input, equity securities	3.54
Minimum [Member] | Measurement Input, Price Volatility [Member]
Fair value input, equity securities	90.99
Minimum [Member] | Measurement Input, Expected Term [Member]
Fair value input, equity securities	5.5
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Fair value input, equity securities	4.20
Maximum [Member] | Measurement Input, Price Volatility [Member]
Fair value input, equity securities	91.58
Maximum [Member] | Measurement Input, Expected Term [Member]
Fair value input, equity securities	7.0