Other Assets

Other assets consist of the following:



	December 31, 2017		December 31, 2016
Retained interest investments	$	11,147	$	10,635
Accounts receivable, net	8,460		4,625
Notes receivable	9,522		1,926
Prepaid expenses	6,625		5,685
Straight line rent	3,804		3,812
Other assets	4,637		8,789
Accrued interest receivable for Senior Notes held by SPE	2,938		2,938
Total other assets	$	47,133	$	38,410

Notes receivable consists of the following:



	December 31, 2017		December 31, 2016
PCR Note, secured by certain assets, 10% interest rate, principal payments due beginning September 2018 per agreed upon schedule, and any remaining amount outstanding is due by December 2020, paid in full February 2018	$	5,000	$	—
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 November 2018 and any remaining amount outstanding is due by November 2019	1,060		—
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	174		209
Total notes receivable	$	9,522	$	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 December 31, 2017 and 2016, there was no allowance for doubtful notes receivable.