
	October 2, 2021		April 3, 2021
Available-for-sale debt securities	$	18,179	$	14,946
Marketable equity securities	16,566		17,600
Non-marketable equity investments	19,772		21,960
	54,517		54,506
Less current portion	(18,867)		(19,496)
	$	35,650	$	35,010

Investments in marketable equity securities consist of investments in the common stock of industrial and other companies. Our non-marketable equity investments include investments in community-based initiatives that buy and sell our homes and provide home-only financing to residents of certain manufactured home communities and other distribution operations.

The amortized cost and fair value of our investments in available-for-sale debt securities, by security type are shown in the table below (in thousands).


	October 2, 2021				April 3, 2021
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Residential mortgage-backed securities	$	2,352	$	2,365	$	2,787	$	2,804
State and political subdivision debt securities	7,942		8,023		7,239		7,345
Corporate debt securities	7,795		7,791		4,797		4,797
	$	18,089	$	18,179	$	14,823	$	14,946

The amortized cost and fair value of our investments in available-for-sale debt securities, by contractual maturity, are shown in the table below (in thousands). Expected maturities differ from contractual maturities as borrowers may have the right to call or prepay obligations, with or without penalties.


	October 2, 2021
	Amortized Cost		Fair Value
Due in less than one year	$	1,611	$	1,618
Due after one year through five years	11,807		11,792
Due after five years through ten years	1,268		1,321
Due after ten years	1,051		1,083
Mortgage-backed securities	2,352		2,365
	$	18,089	$	18,179

There were no gross gains or losses realized on the sale of available-for-sale debt securities during the three and six months ended October 2, 2021. For the three and six months ended September 26, 2020, there were no gross gains realized on the sale of available-for-sale debt securities and gross losses realized were $5,000.

Net investment gains and losses on marketable equity securities were as follows (in thousands):


	Three Months Ended				Six Months Ended
	October 2, 2021		September 26, 2020		October 2, 2021		September 26, 2020
Marketable equity securities
Net gain recognized during the period	$	243	$	1,251	$	1,939	$	3,281
Less: Net (gains) losses recognized on securities sold during the period	(143)		27		(279)		(6)
Unrealized gains recognized during the period on securities still held	$	100	$	1,278	$	1,660	$	3,275