Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies [Abstract]

Future Minimum Lease Payments in Subsequent Fiscal Years Under Noncancelable Operating Leases

At December 31, 2017, the approximate future minimum lease payments in subsequent years under noncancelable operating leases with an initial term in excess of one year are as follows:

2018	$	817,000
2019		430,000
2020		279,000
2021		254,000
2022		164,000
Thereafter		544,000
	$	2,488,000

Future Minimum Purchase Agreement Payments in Subsequent Years

At December 31, 2017, the approximate future minimum purchase agreement payments in subsequent years are as follows:

2018	$	-
2019		300,000
2020		600,000
2021		900,000
2022		1,200,000
Thereafter		1,500,000
	$	4,500,000