RELATED PARTY TRANSACTIONS (Details) $ in Thousands				12 Months Ended
	Aug. 28, 2015 USD ($) a ft² item	Aug. 28, 2015 USD ($) a ft² item	Sep. 30, 2004 USD ($)	Dec. 31, 2016 USD ($) ft² item	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Members of Management Holding Noncontrolling Interests | BLI Driveway Lease
RELATED PARTY TRANSACTIONS
Anniversary years subject to cost of living adjustment rent increases				5 years
Lease term under each renewal		5 years		5 years
Area of property leased (in square feet) | ft²				37,400
Minimum lease term				15 years
Original annual rent expense			$ 300	$ 300
Annual rent				$ 377
Number of terms for which the lease can be renewed | item		3		3
Lease rent paid				$ 377	$ 377	$ 350
Operating expenses related to lease				37	84	119
Affiliates of Controlling Stockholders
RELATED PARTY TRANSACTIONS
Lease rent paid				$ 127	142	$ 125
Golden Road | Members of Management Holding Noncontrolling Interests | BLI Parking Lot Lease
RELATED PARTY TRANSACTIONS
Lease term	20 years
Area of building being demolished (in square feet) | ft²	46,000	46,000
Area of property leased (in acres) | a	4.15	4.15
Number of parking spaces | item	300	300
Minimum annual rent	$ 695	$ 695
Anniversary years subject to cost of living adjustment rent increases	5 years
Lease term under each renewal	10 years			10 years
Amount due to related party if lease is not renewed	$ 1,600	$ 1,600		$ 1,600
Lease rent paid				695	85
Operating expenses related to lease				$ 60	$ 12