Property, Plant and Equipment (Details Textual) - USD ($) |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Dec. 31, 2016 |
|
| Property Plant and Equipment (Textual) | |||
| Land and building held for sale | $ 395,000 | $ 395,000 | |
| Depreciation expense | $ 3,369,000 | $ 1,615,000 | |