Omaha Land Lease Rent Expense (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||
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Dec. 31, 2016 | |||||||||||||||||||||||||||||||||||||
Leases [Abstract] | |||||||||||||||||||||||||||||||||||||
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] | The aggregate minimum cash payments to be made by the Company on the non-cancelable Omaha facility related land lease in effect as of December 31, 2016, are as follows for the subsequent years ended December 31; as listed below.
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