Stockholders' Equity of Identiv - Additional Information (Detail) (USD $)	0 Months Ended		1 Months Ended	9 Months Ended		12 Months Ended		0 Months Ended	9 Months Ended									1 Months Ended			6 Months Ended	9 Months Ended	0 Months Ended		9 Months Ended		1 Months Ended	9 Months Ended	0 Months Ended	9 Months Ended					0 Months Ended		9 Months Ended	12 Months Ended	0 Months Ended					0 Months Ended	12 Months Ended	9 Months Ended
	May 22, 2014	Aug. 14, 2013	Nov. 30, 2010	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Mar. 13, 2014	Mar. 13, 2014 Restricted Stock And R S U	Sep. 30, 2014 Restricted Stock And R S U	Sep. 30, 2014 Restricted Stock And R S U NASDAQ	Sep. 30, 2014 Restricted Stock Units R S U One	Sep. 30, 2014 Restricted Stock Units R S U One NASDAQ	Sep. 30, 2014 Stock Options One	Sep. 30, 2014 Stock Options One NASDAQ	Sep. 30, 2014 Stock Options Two	Sep. 30, 2014 Stock Options Five	Mar. 31, 2014 Stock Options Three	Jan. 31, 2013 Employee Stock Purchase Plan	Jan. 31, 2012 Employee Stock Purchase Plan	Jun. 30, 2011 Employee Stock Purchase Plan	Dec. 31, 2012 Employee Stock Purchase Plan	Sep. 30, 2014 Employee Stock Purchase Plan	Sep. 08, 2014 2011 Incentive Compensation Plan CEO	Sep. 30, 2014 Stock Incentive Plan Twenty Eleven	Sep. 30, 2014 Hirsch Electronics	Sep. 30, 2014 Consultant Warrant	Mar. 31, 2014 Opus Bank	Sep. 30, 2014 Opus Bank	Aug. 07, 2013 Hercules Loan	Sep. 30, 2014 Minimum Employee Stock Option	Sep. 30, 2014 Minimum Hirsch Electronics	Sep. 30, 2014 Maximum Employee Stock Option	Sep. 30, 2014 Maximum Hirsch Electronics	Sep. 30, 2014 Weighted Average Hirsch Electronics	Apr. 16, 2013 Lincoln Park Capital Fund L L C Purchase Agreement	Apr. 17, 2013 Lincoln Park Capital Fund L L C Purchase Agreement	Sep. 30, 2014 Lincoln Park Capital Fund L L C Purchase Agreement	Dec. 31, 2013 Lincoln Park Capital Fund L L C Purchase Agreement	Apr. 17, 2013 Lincoln Park Capital Fund L L C Purchase Agreement Minimum	Apr. 17, 2013 Lincoln Park Capital Fund L L C Purchase Agreement Maximum	Sep. 16, 2014 Underwritten Public Offering	Sep. 16, 2014 Initial Public Offering	Sep. 16, 2014 Over-Allotments	Aug. 14, 2013 Private Placement	Dec. 31, 2011 Private Placement Common Stock	Sep. 30, 2014 Private Placement Cashless Exercise Common Stock	Sep. 30, 2014 Private Placement Cash Exercise Common Stock
Stockholders Equity [Line Items]
Stock issued during period, Shares, Stock splits	80,000,000
Decrease in stock issued during period shares stock splits	8,000,000
Common stock, par value	$ 0.001			$ 0.001		$ 0.001
Preferred stock, outstanding	0			0		0
Issuance of common stock in connection with common stock offerings (in shares)		834,847																																		175,438	496,500	250,000			2,000,000	2,300,000
Common stock issued in private placement, sales price		$ 8.50
Number of additional common stock to be purchased by the warrant		834,847
Warrant exercise price		$ 10.00	$ 26.50	$ 30.00																						$ 10.70		$ 9.90	$ 7.10		$ 24.20		$ 30.30	$ 27.90
Issuance of common stock in connection with common stock offerings		$ 7,100,000		$ 35,744,000																																$ 1,500,000	$ 4,200,000	$ 1,900,000
Issuance cost of common stock																																										400,000		800,000
Cash paid to placement agent		600,000
Common stock to be issued for placement agent		100,000	409,763	473,543																					16,538	85,000		100,000	99,208
Additional warrants issued to purchase common stock		100,000
Private placement warrant term		4 years
Private placement warrant estimated volatility		91.57%																									92.09%
Private placement warrant risk free interest rate		1.08%																									1.73%
Private placement warrant fair value		4,000,000																									800,000
Common stock to warrant holders upon exercise of the warrants																																													40,594	217,599	58,822
Private Placement warrants exercised				477,375
Common stock per share price offered to public																																										$ 15.00
Common stock additional shares issued																																											300,000
Net proceeds from sale of common stock in public offering																																										31,600,000
Underwriting discount on issuance of shares																																										2,500,000
Purchase agreement, maximum amount of sale																																			20,000,000
Common stock required to issue under the agreement																																			25,180	25,180
Common stock required to issue under the agreement, additional shares																																			32,374	3,237	9,723
Initial purchase value																																				2,000,000
Initial purchase price per share																																				$ 11.40
Purchase agreement term																																				36 months
Aggregate shares that can be purchased subject to certain conditions																																				18,000,000
Maximum number of common stock to be purchased from time to time																																				10,000
Closing sale price of common stock																																							$ 5.00	$ 7.50
Underwriting expense																																				500,000
Common stock other issuance under the agreement																																				28,417
Agreement termination date																																					Sep. 10, 2014
Warrant expiration period																										5 years		5 years
Warrant expiration date																									Apr. 30, 2014	Aug. 13, 2019		Mar. 31, 2019
Investment Warrants Exercisable Period																									2 years
Employee stock purchase plan offering term																				10 years
Annual increase in aggregate number of shares reserved for issuance under ESPP																		75,000	75,000	75,000		293,888
Increase in the aggregate number of shares reserved for issuance under the ESPP as percentage of total shares outstanding																				2.00%
Percentage of common stock purchase price of fair market value																				85.00%
ESPP each offering period (in months)																				6 months
Employee stock purchase plan offering, extended term																					24 months
Temporary suspension effective date																						Jan. 01, 2014
Granted								50,000															150,000
Purchase common stock				3,595,891			300,000															293,888		540,842
Percentage of stock options vesting									25.00%				25.00%	25.00%	25.00%	100.00%
Stock options vesting period									1 year	3 years	3 years	10 years		1 year
Vesting term description									the remaining shares vesting over three years in 12 equal quarterly installments			the remaining options vesting over three years in 36 equal monthly installments
Restricted stock units available for grant																							150,000
Issuance of common stock in connection with stock bonus and incentive plans (in shares)				1,000,000
Stock options plans expiration period																														7 years		10 years
Percentage of stock options vesting after one year																	100.00%
Exercised				26,544	18
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax				1,600,000		1,200,000
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax				$ 0		$ 0
Shares excluded from calculation of diluted loss per share				669,349	447,175