Segment Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues	$ 1,391,335	$ 851,870
Service related revenues	38,999
License revenues	73,199	6,092,370
Loss from operations	(890,185)	(1,071,928)
Depreciation and amortization	98,050	75,445
Purchases of patents and trademarks	46,907	25,120
Purchases of property and equipment	24,309	21,561
Assets	1,519,008	1,955,917
Total long lived assets	317,907	344,741
Patent Monetization [Member]
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues
Service related revenues
License revenues	1,241	6,003,594
Loss from operations	(394,382)	(24,461)
Depreciation and amortization	34,250	25,304
Purchases of patents and trademarks	23,453	12,560
Purchases of property and equipment
Assets	287,206	255,759
Total long lived assets	131,410	142,201
Andrea DSP Microphone and Audio Software Products [Member]
Summary of condensed consolidated interim financial information for Andrea's segments
Net product revenues	1,391,335	851,870
Service related revenues	38,999
License revenues	32,959	88,776
Loss from operations	(495,803)	(1,047,467)
Depreciation and amortization	63,800	50,141
Purchases of patents and trademarks	23,454	12,560
Purchases of property and equipment	24,309	21,561
Assets	1,231,802	1,700,158
Total long lived assets	$ 186,497	$ 202,540