Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Condensed consolidated financial information for Andrea’s segments
Net revenues from external customers	$ 817,416	$ 1,072,411	$ 2,042,628	$ 2,248,081
License revenues	125,851	244,603	550,208	944,309
Income (loss) from operations	(345,745)	(66,673)	(965,785)	(366,907)
Depreciation and amortization	144,246	139,793	429,258	406,328
Purchases of property and equipment	5,584	96,954	35,293	124,424
Purchases of patents and trademarks	4,255	4,231	27,306	15,642
Assets	4,291,544		4,291,544		5,237,364
Total long lived assets	1,136,667		1,136,667		1,503,326
Andrea DSP Microphone and Audio Software Products [Member]
Condensed consolidated financial information for Andrea’s segments
Net revenues from external customers	88,187	228,186	399,558	374,414
License revenues	125,851	244,603	550,208	944,309
Income (loss) from operations	(222,383)	45,793	(397,000)	93,469
Depreciation and amortization	120,689	119,925	361,464	358,959
Purchases of property and equipment	4,121	4,667	6,574	19,761
Purchases of patents and trademarks	1,346	2,692	12,569	12,810
Assets	2,245,081		2,245,081		3,114,849
Total long lived assets	775,072		775,072		1,150,426
Andrea Anti-Noise Products [Member]
Condensed consolidated financial information for Andrea’s segments
Net revenues from external customers	729,229	844,225	1,643,070	1,873,667
License revenues
Income (loss) from operations	(123,362)	(112,466)	(568,785)	(460,376)
Depreciation and amortization	23,557	19,868	67,794	47,369
Purchases of property and equipment	1,463	92,287	28,719	104,663
Purchases of patents and trademarks	2,909	1,539	14,737	2,832
Assets	2,046,463		2,046,463		2,122,515
Total long lived assets	$ 361,595		$ 361,595		$ 352,900