Other Assets

Other assets consist of the following:



	September 30, 2017		December 31, 2016
Retained interest investments	$	11,012	$	10,635
Accounts receivable, net	7,551		4,625
Notes receivable, net	3,474		1,926
Prepaid expenses	7,105		5,685
Straight line rent	3,899		3,812
Other assets	6,524		8,789
Accrued interest receivable for Senior Notes held by SPE	935		2,938
Total other assets	$	40,500	$	38,410

Notes receivable, net consists of the following:



	September 30, 2017		December 31, 2016
Pier Park Community Development District notes, non-interest bearing, due September 2022	$	1,527	$	1,684
Interest bearing homebuilder note, secured by the real estate sold — 5.5% interest rate, principal payment of $0.1 million due September 2018 and any remaining amount outstanding is due by September 2019	904		—
Interest bearing homebuilder note, secured by the real estate sold — 5.5% interest rate, principal payment of $0.1 million due June 2018 and any remaining amount outstanding is due by June 2019	857		—
Interest bearing homebuilder notes, secured by the real estate sold — 4.0% interest rate, due December 2016, paid January 2017	—		33
Various mortgage notes, secured by certain real estate, bearing interest at various rates	186		209
Total notes receivable, net	$	3,474	$	1,926

The Company evaluates the carrying value of the notes receivable and the need for an allowance for doubtful notes receivable at each reporting date. As of September 30, 2017 and December 31, 2016, there was no allowance for doubtful notes receivable.