Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Sales:
Net sales	$ 26,037	$ 34,369	$ 55,082	$ 56,067
Net sales, related party	8,705	8,790	20,082	17,811
Total net sales	34,742	43,159	75,164	73,878
Cost of sales:
Cost of sales	16,447	19,747	32,048	32,100
Cost of sales, related party	3,906	3,471	8,822	7,309
Amortization of purchased intangible assets and inventory step-up costs	2,493	3,137	4,961	6,682
Research and development	7,499	10,369	16,976	18,612
Selling, general and administrative	9,092	11,597	19,391	21,674
Restructuring charges and exit costs	2,100	6,600	2,100	7,000
Proceeds from legal settlement	(1,500)		(1,500)
Impairment of Intangibles		12,300		12,284
Merger and acquisition costs		2,726		6,776
Net change in fair value of contingent consideration		(3,912)		(4,343)
Total operating expenses	17,907	26,962	37,683	49,270
Total cost of sales	22,086	39,027	45,071	58,790
Loss from operations	(5,251)	(22,830)	(7,590)	(34,182)
Other income and expense, net:
Interest income and other, net	(19)	177	(33)	467
Interest expense	(49)	(494)	(101)	(980)
Total other income and expense, net	(68)	(317)	(134)	(513)
Loss before income taxes	(5,319)	(23,147)	(7,724)	(34,695)
Provision for (benefit from) income taxes	(1,122)	107	(1,017)	799
Net loss	(4,197)	(23,254)	(6,707)	(35,494)
Less: Net loss attributable to non-controlling interests		98		(37)
Net loss attributable to Exar Corporation	$ (4,197)	$ (23,352)	$ (6,707)	$ (35,457)
Net loss per share:
Basic (in Dollars per share)	$ (0.09)	$ (0.50)	$ (0.14)	$ (0.75)
Diluted (in Dollars per share)	$ (0.09)	$ (0.50)	$ (0.14)	$ (0.75)
Shares used in the computation of net loss per share:
Basic (in Shares)	48,121	47,139	48,024	47,188
Diluted (in Shares)	48,121	47,139	48,024	47,188
Gross profit	$ 12,656	$ 4,132	$ 30,093	$ 15,088
Cost of Sales [Member]
Cost of sales:
Restructuring charges and exit costs	740	4,305	740	4,332
Impairment of Intangibles		8,367		8,367
Operating Expense [Member]
Cost of sales:
Restructuring charges and exit costs	$ 1,316	2,265	$ 1,316	2,634
Impairment of Intangibles		$ 3,917		$ 3,917