INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
INTANGIBLE ASSETS
Weighted Average Amortization Period	15 years 9 months 18 days		15 years 9 months 18 days
Impairment of assets	$ 0
Cost Basis	11,978		11,978
Accumulated Amortization	(6,630)		(6,519)
Net Book Value	5,348		5,459
Amortization expense	111	111
Estimated future amortization expense
2015	333
2016	444
2017	444
2018	444
2019	444
2020 and thereafter	3,239
Net Book Value	5,348		5,459
Minimum
INTANGIBLE ASSETS
Weighted Average Amortization Period	10 years
Maximum
INTANGIBLE ASSETS
Weighted Average Amortization Period	20 years
Customer relationships
INTANGIBLE ASSETS
Weighted Average Amortization Period	7 years 2 months 12 days		7 years 2 months 12 days
Cost Basis	3,979		3,979
Accumulated Amortization	(3,650)		(3,639)
Net Book Value	329		340
Estimated future amortization expense
Net Book Value	329		340
Trade names
INTANGIBLE ASSETS
Weighted Average Amortization Period	20 years		20 years
Cost Basis	7,999		7,999
Accumulated Amortization	(2,980)		(2,880)
Net Book Value	5,019		5,119
Estimated future amortization expense
Net Book Value	$ 5,019		$ 5,119