LEASE COMMITMENTS - Driveway and Parking Lot Leases(Details) $ in Thousands			1 Months Ended	12 Months Ended
	Aug. 28, 2015 USD ($) a ft² item	Sep. 30, 2004 USD ($)	Aug. 31, 2015 item	Dec. 31, 2015 USD ($) ft² item	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Members of Management Holding Noncontrolling Interests | BLI Driveway Project
LEASE COMMITMENTS
Lease term under each renewal				5 years
Area of property leased (in square feet) | ft²				37,368
Minimum lease term				15 years
Original annual rent expense		$ 300
Annual rent				$ 377	$ 350	$ 340
Number of terms for which the lease can be renewed | item			3	3
Lease rent paid				$ 377	350	340
Operating expenses related to lease				84	119	159
Total cost of improvements				2,000
Portion of total cost of project for which company was responsible				$ 1,350
Estimated useful life				15 years
Affiliates of Controlling Stockholders
LEASE COMMITMENTS
Lease rent paid				$ 142	$ 125	$ 123
Golden Road | Members of Management Holding Noncontrolling Interests | BLI Parking Lot Lease
LEASE COMMITMENTS
Lease term	20 years
Area of property leased (in acres) | a	4.15
Area of building being demolished (in square feet) | ft²	46,000
Number of parking spaces | item	300
Minimum annual rent	$ 695
Anniversary years subject to cost of living adjustment rent increase	5 years
Lease term under each renewal	10 years
Amount due to related party if lease is not renewed	$ 1,600
Lease rent paid				85
Operating expenses related to lease				$ 12