Revenue Recognition - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018	Feb. 01, 2019
Disaggregation Of Revenue [Line Items]
Revenue remaining unsatisfied performance obligation	$ 0
Contra revenue for reduction from cost of therapy under co-payment assistance program	14,040	$ 29,207
Payment term for customers			31 days
Maximum
Disaggregation Of Revenue [Line Items]
Amount of reduction patients could receive from cost of first month of therapy				$ 300
Amount of reduction from the cost of each refill for maximum of 12 months				$ 250
GammaCore Sapphire and GamaCore Sapphire
Disaggregation Of Revenue [Line Items]
Voucher units redemption value	$ 1,600,000
GammaCore
Disaggregation Of Revenue [Line Items]
Voucher units redemption value		$ 200,000