Segment Information (Schedule of Selected Consolidated Financial Information for Andrea's Segments) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues	$ 423,215	$ 377,755
License revenues	3,269	4,896
Operating loss	(129,777)	(178,288)
Depreciation and amortization	9,174	15,531
Assets	1,361,473		$ 1,209,904
Total long lived assets	419,210		439,675
Payments for patents and trademarks	360	6,218
Patent Monetization [Member]
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues
License revenues	84	139
Operating loss	(84,146)	(89,132)
Depreciation and amortization	3,759	5,517
Assets	332,092		279,437
Total long lived assets	102,718		106,296
Payments for patents and trademarks	180	3,109
Andrea DSP Microphone and Audio Software Products [Member]
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues	423,215	377,755
License revenues	3,185	4,757
Operating loss	(45,631)	(89,156)
Depreciation and amortization	5,415	10,014
Assets	1,029,381		930,467
Total long lived assets	316,492		$ 333,379
Payments for patents and trademarks	$ 180	$ 3,109