Fair Value Measurements (Details) € in Millions	1 Months Ended	3 Months Ended
	Jun. 30, 2019 EUR (€)	Mar. 31, 2021 USD ($)
Fair Value, Nonrecurring [Member]
Fair Value Measurements (Details) [Line Items]
Operating lease, impairment loss (in Dollars) | $		$ 55,496
Curetis GmbH [Member] | European Investment Bank [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Fair Value, Recurring [Member]
Fair Value Measurements (Details) [Line Items]
Drew down amount (in Euro)	€ 5.0
Additional payment percentage	2.10%
Participation percentage interest	2.10%
Curetis GmbH [Member] | European Investment Bank [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Fair Value, Recurring [Member] | Minimum [Member]
Fair Value Measurements (Details) [Line Items]
Cumulative equity capital raised (in Euro)	€ 15.0
OpGen's Equity [Member] | European Investment Bank [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Fair Value, Recurring [Member]
Fair Value Measurements (Details) [Line Items]
Participation percentage interest	0.30%
Maturity period	mid-2024 and mid-2025