PROPERTY, PLANT AND EQUIPMENT (Detail) - USD ($)
$ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
$ 2,512
|
$ 2,807
|
| Less: impairment reserve |
0
|
(82)
|
| Less: accumulated depreciation |
(1,833)
|
(1,858)
|
| Total property, plant and equipment, net |
679
|
867
|
| Building and improvements |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
1,273
|
1,273
|
| Scientific equipment |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
598
|
598
|
| Computer hardware and software |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
107
|
109
|
| Machinery and equipment |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
275
|
568
|
| Land and improvements |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
162
|
162
|
| Other personal property |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
70
|
70
|
| Office equipment |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property, Plant and Equipment, Gross |
$ 27
|
$ 27
|