Investments and Fair Value Measurements (Tables)

12 Months Ended

Mar. 31, 2018

Schedule of Cash equivalents and available-for-sale securities

Cash equivalents and available-for-sale securities

The following is a summary of cash equivalents and available-for-sale securities as of March 31, 2018 and April 1, 2017 (in thousands):

	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair   Value
March 31, 2018
Auction rate securities	$	1,950	$	—	$	(107	)	$	1,843
Money market funds	9		—		—			9
	$	1,959	$	—	$	(107	)	$	1,852
April 1, 2017
Auction rate securities	$	2,150	$	—	$	(429	)	$	1,721
Money market funds	14		—		—			14
	$	2,164	$	—	$	(429	)	$	1,735

Expected maturity distribution of cash equivalents and available-for-sale debt securities

The expected maturity distribution of cash equivalents and available-for-sale debt securities is as follows (in thousands):

	March 31, 2018				April 1, 2017
	Cost		Estimated Fair Value		Cost		Estimated Fair Value
Due in less than one year	$	9	$	9	$	14	$	14
Due after ten years	1,950		1,843		2,150		1,721
Total investments in debt securities	$	1,959	$	1,852	$	2,164	$	1,735

Fair value of the financial assets measured at fair value on a recurring basis

The fair value of the financial assets and liabilities measured at fair value on a recurring basis was determined using the following levels of inputs as of March 31, 2018 and April 1, 2017 (in thousands):

				Total		Quoted Prices In Active Markets For Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
March 31, 2018
	Assets
		Money market funds		$	9	$	9	$	—
		Auction rate securities  (1)		1,843		—		1,843
		Invested funds in deferred compensation plan (2)		14,284		14,284		—
			Total assets measured at fair value	$	16,136	$	14,293	$	1,843
	Liabilities
		Deferred compensation plan obligation (2)		$	14,284	$	14,284	$	—
			Total liabilities measured at fair value	$	14,284	$	14,284	$	—
April 1, 2017
	Assets
		Money market funds		$	14	$	14	$	—
		Auction rate securities (1)		1,721		—		1,721
		Invested funds in deferred compensation plan (2)		10,237		10,237		—
			Total assets measured at fair value	$	11,972	$	10,251	$	1,721
	Liabilities
		Deferred compensation plan obligation (2)		$	10,237	$	10,237	$	—
			Total liabilities measured at fair value	$	10,237	$	10,237	$	—

(1) Auction rate securities are debt instruments with interest rates that reset through periodic short-term auctions. The Company's Level 2 ARS are valued based on quoted prices for identical or similar instruments in markets that are not active.

(2) The non-qualified deferred compensation plan provides eligible employees and members of the Board of Directors with the opportunity to defer a specified percentage of their cash compensation. The Company includes the asset deferred by the participants in the “Other current assets” and “Other non-current assets” line items of its Consolidated Balance Sheets and the Company's obligation to deliver the deferred compensation in the "Other current liabilities" and “Other long-term liabilities” line items of its Consolidated Balance Sheets.