INCOME TAXES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current [Abstract]
Federal	$ 0	$ 0	$ 0
State	200	242	200
Total	200	242	200
Deferred [Abstract]
Federal	0	0	(1,420)
State	0	0	(259)
Total	0	0	(1,679)
Total provision (benefit)	200	242	(1,479)
Noncurrent deferred tax assets (liabilities) [Abstract]
Allowance for bad debts	5,904	5,617
Accrued rent	3,191	2,952
Accrued bonus	1,429	0
Accrued benefits	198	0
Stock-based compensation	557	498
Depreciation	20,372	14,941
Goodwill	1,959	(380)
Other intangibles	562	274
Pension plan liabilities	2,142	2,215
Net operating loss carryforwards	17,846	14,765
Sale leaseback-deferred gain	0	2,629
AMT credit	424	424
Total noncurrent deferred tax assets	54,584	43,935
Less valuation allowance	(54,584)	(43,935)
Noncurrent deferred tax assets, net of valuation allowance	0	0
Difference between the actual tax provision and the tax provision that would result from the use of the Federal statutory rate [Abstract]
(Loss) gain from continuing operations before taxes	(4,298)	383	(27,028)
Expected tax benefit	(1,504)	134	(9,460)
State tax benefit (net of federal)	200	242	(43)
Valuation allowance	1,394	(274)	7,876
Other	110	140	148
Total provision (benefit)	$ 200	$ 242	$ (1,479)
Expected tax benefit	35.00%	35.00%	35.00%
State tax benefit (net of federal)	(4.70%)	63.20%	0.20%
Valuation allowance	(32.40%)	(71.50%)	(29.10%)
Other	(2.60%)	36.50%	(0.60%)
Total	(4.70%)	63.20%	5.50%
Net operating loss carryforwards	$ 39,700	$ 32,600
Net operating loss carryforwards, period of ownership change	3 years
Net operating loss carryforwards, minimum percentage of ownership change	50.00%
Activity related to uncertain tax positions [Roll Forward]
Balance, beginning of period	$ 0	0	$ 0
Decrease for tax positions of prior years	0	0	0
Increase for tax positions of current year	0	0	0
Balance, end of period	$ 0	$ 0	$ 0