LEASE COMMITMENTS - Driveway and Parking Lot Leases (Details) - Members of Management Holding Noncontrolling Interests $ in Thousands				12 Months Ended
	Aug. 28, 2015 USD ($) a	Aug. 28, 2015 USD ($) a item	Sep. 30, 2004 USD ($)	Dec. 31, 2016 USD ($) ft² item	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
BLI Driveway Lease
LEASE COMMITMENTS
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 term under each renewal		5 years		5 years
Anniversary years subject to cost of living adjustment rent increases				5 years
Total cost of improvements				$ 2,000
Portion of total cost of project for which company was responsible				$ 1,350
Estimated useful life				15 years
Lease rent paid				$ 377	$ 377	$ 350
Operating expenses related to lease				$ 37	84	$ 119
Golden Road | BLI Parking Lot Lease
LEASE COMMITMENTS
Area of property leased (in acres) | a	4.15	4.15
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
Anniversary years subject to cost of living adjustment rent increases	5 years
Lease rent paid				695	85
Operating expenses related to lease				$ 60	$ 12