Note 22 - Subsequent Event	12 Months Ended
Mar. 30, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	NOTE 22. SUBSEQUENT EVENT On April 26, 2014, we signed a definitive agreement (“Merger Agreement”) to acquire Integrated Memory Logic Limited (“iML”), a leading provider of analog mixed-signal solutions for the flat panel display market. The iML acquisition supports Exar's strategy of building a large scale diversified analog mixed-signal business. Under the terms of the transaction, Exar's subsidiary (“Sub”) has commenced a tender offer to acquire all of the outstanding shares of iML for NT$91.00 (approximately US$3.00) per iML share in cash and acquire any remaining shares at NT$91.00 per share pursuant to a follow-on merger. On May 29, 2014, Sub completed the offer. 68,319,091 shares (the “Accepted Shares”) were validly tendered in the offer, representing approximately 92% of iML’s outstanding shares. The persons from whom the Accepted Shares were acquired were the shareholders of iML. Sub will pay an aggregate purchase price of NT$6.2 billion (approximately US$206.0 million) to iML shareholders for the tendered shares. Pursuant to the terms and conditions set forth in the Merger Agreement, Sub intends to conduct a second-step merger in which Sub will merge with and into iML and the remaining outstanding shares will be converted into the right to receive NT$91.00 per share in cash. When complete, the gross transaction value is currently estimated to be NT$6.8 billion (approximately US$224.0 million), or NT$2.8 billion (approximately US$92.0 million), net of cash acquired. After the closing, iML will become a wholly owned subsidiary of Exar and iML stock will cease trading on the Taiwan Stock Exchange. Exar financed the acquisition of the shares with a combination of cash on hand and a new $90.0 million senior secured bridge loan facility. Stifel Financial Corp. has provided Exar a commitment letter to provide Exar up to $90.0 million in senior secured bridge loans. The commitment letter is subject to customary conditions to consummation. Due to the limited time since the date of the acquisition, the initial disclosure for this business combination is incomplete as of the date of this filing. As such, it is impracticable for us to make certain business combination disclosures at this time. We are unable to present the acquisition date fair value of and information related to assets acquired and liabilities assumed. We plan to provide this information in our quarterly report on Form 10-Q for the quarter ending June 29, 2014.

Note 22 - Subsequent Event

12 Months Ended

Mar. 30, 2014

NOTE 22. SUBSEQUENT EVENT

On April 26, 2014, we signed a definitive agreement (“Merger Agreement”) to acquire Integrated Memory Logic Limited (“iML”), a leading provider of analog mixed-signal solutions for the flat panel display market. The iML acquisition supports Exar's strategy of building a large scale diversified analog mixed-signal business. Under the terms of the transaction, Exar's subsidiary (“Sub”) has commenced a tender offer to acquire all of the outstanding shares of iML for NT$91.00 (approximately US$3.00) per iML share in cash and acquire any remaining shares at NT$91.00 per share pursuant to a follow-on merger. On May 29, 2014, Sub completed the offer. 68,319,091 shares (the “Accepted Shares”) were validly tendered in the offer, representing approximately 92% of iML’s outstanding shares. The persons from whom the Accepted Shares were acquired were the shareholders of iML. Sub will pay an aggregate purchase price of NT$6.2 billion (approximately US$206.0 million) to iML shareholders for the tendered shares. Pursuant to the terms and conditions set forth in the Merger Agreement, Sub intends to conduct a second-step merger in which Sub will merge with and into iML and the remaining outstanding shares will be converted into the right to receive NT$91.00 per share in cash. When complete, the gross transaction value is currently estimated to be NT$6.8 billion (approximately US$224.0 million), or NT$2.8 billion (approximately US$92.0 million), net of cash acquired. After the closing, iML will become a wholly owned subsidiary of Exar and iML stock will cease trading on the Taiwan Stock Exchange. Exar financed the acquisition of the shares with a combination of cash on hand and a new $90.0 million senior secured bridge loan facility. Stifel Financial Corp. has provided Exar a commitment letter to provide Exar up to $90.0 million in senior secured bridge loans. The commitment letter is subject to customary conditions to consummation.

Due to the limited time since the date of the acquisition, the initial disclosure for this business combination is incomplete as of the date of this filing. As such, it is impracticable for us to make certain business combination disclosures at this time. We are unable to present the acquisition date fair value of and information related to assets acquired and liabilities assumed. We plan to provide this information in our quarterly report on Form 10-Q for the quarter ending June 29, 2014.