10. Leases

The Company leases certain equipment and buildings under operating lease arrangements. Most leases are for a fixed term and for a fixed amount; additionally, the Company leases certain buildings under operating leases on a month-to-month basis. The Company is not a party to any leases that have step rent provisions, escalation clauses, capital improvement funding or payment increases based on any index or rate.

Future minimum payments under non-cancelable operating leases with initial or remaining terms in excess of one year during each of the next five years follow:

2019	$	2,489,016
2020		1,928,877
2021		1,120,898
2022		304,704
2023		550
	$	5,844,045

Rent expense for all operating leases was $2,552,887 in 2018 and $2,166,755 in 2017. The Company expects future rent expense, including non-cancelable operating leases, leases that are expected to be renewed and buildings leased on a month-to-month basis, for each of the next five years to be in the range of $2,200,000 to $2,500,000.