PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,362	$ 5,359
Less accumulated depreciation	3,743	3,710
Property and equipment, net	1,619	1,649
Depreciation expense	33	161
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,378	3,378
Electronic data processing equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,507	1,504
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 477	$ 477