Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

As of December 31, 2017, the future minimum rental payments under non-cancelable operating leases were approximately as follows:

Years ending December 31,	Amount
2018	$	3,638,000
2019		3,056,000
2020		2,523,000
2021		1,533,000
2022		613,000
Thereafter		884,000
Total	$	12,247,000

Schedule Of Capital Lease

The following is a schedule of future minimum lease payments on the non-cancelable capital lease as of December 31, 2017:

Year ending December 31,	Amount
2017	$	792,798
Total minimum payments required		792,798
Less amount representing interest		(75,059)
Present value of net minimum lease payments		717,739
Less current portion		(98,738)
Long-term portion	$	619,001
Equipment under capital lease	$	750,000
Less: accumulated amortization		(53,571)
	$	696,429

Schedule of Future Minimum Lease Payments for Capital Leases

As of December 31, 2017 the future minimum payments under non-cancelable capital leases were approximately as follows:

Years ending December 31,	Amount
2018	$	119,000
2019		119,000
2020		119,000
2021		119,000
2022		119,000
Thereafter		198,000
Total	$	793,000