Segment Information (Schedule of Selected Consolidated Financial Information for Andrea's Segments) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues	$ 374,024	$ 438,188	$ 1,349,153	$ 921,402
Service related revenues	3,711	9,600	17,271	23,538
License revenues	8,645	14,702	36,489	49,142
Operating loss	(165,500)	(187,714)	(401,951)	(753,569)
Depreciation and amortization	18,544	23,082	60,646	69,740
Assets	1,397,199		1,397,199		$ 1,519,008
Total long lived assets	267,069		267,069		317,907
Purchases of property and equipment		13,938		13,938
Payments for patents and trademarks	4,850	19,624	9,808	45,374
Patent Monetization [Member]
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues
Service related revenues
License revenues	202	345	739	984
Operating loss	(97,488)	(110,444)	(314,939)	(334,727)
Depreciation and amortization	5,657	8,500	19,476	23,692
Assets	323,227		323,227		287,206
Total long lived assets	126,138		126,138		131,410
Purchases of property and equipment
Payments for patents and trademarks	2,425	9,812	4,904	22,687
Andrea DSP Microphone and Audio Software Products [Member]
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues	374,024	438,188	1,349,153	921,402
Service related revenues	3,711	9,600	17,271	23,538
License revenues	4,732	4,757	18,479	24,620
Operating loss	(68,012)	(77,270)	(87,012)	(418,842)
Depreciation and amortization	12,887	14,582	41,170	46,048
Assets	1,073,972		1,073,972		1,231,802
Total long lived assets	140,931		140,931		$ 186,497
Purchases of property and equipment		13,938		13,938
Payments for patents and trademarks	$ 2,425	$ 9,812	$ 4,904	$ 22,687