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Equity Incentive Plans (Assumptions Used in the Black-Scholes Model) (Details)	Sep. 30, 2021	Sep. 30, 2020
Measurement Input, Price Volatility [Member]
Fair value input, equity securities		90.43
Measurement Input, Expected Dividend Rate [Member]
Fair value input, equity securities	0	0
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Fair value input, equity securities	0.73	0.25
Minimum [Member] | Measurement Input, Price Volatility [Member]
Fair value input, equity securities	84.04
Minimum [Member] | Measurement Input, Expected Term [Member]
Fair value input, equity securities	5.50	5.50
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Fair value input, equity securities	1.29	1.51
Maximum [Member] | Measurement Input, Price Volatility [Member]
Fair value input, equity securities	93.37
Maximum [Member] | Measurement Input, Expected Term [Member]
Fair value input, equity securities	7.00	7.00

X

- Definition

Value of input used to measure investment in equity security measured at fair value.

+ References

No definition available.

+ Details

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Namespace Prefix:	armp_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Details

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X

- Details

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X

- Details

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- Details

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- Details

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- Details

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