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INCOME TAXES - Tax Statutory Rate Reconciliation and Changes in Uncertain Income Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of the tax (benefit) provision computed at the statutory rate to the effective tax rate
Statutory U.S. federal income tax rate (as a percent)	21.00%	34.00%
State and local income taxes, net of federal income tax benefit (as a percent)	3.20%	3.40%
Permanent differences (as a percent)	(4.40%)	(1.20%)
Change in valuation allowance (as a percent)	(18.70%)	446.70%
Change in uncertain tax positions (as a percent)	0.00%	0.50%
Other (as a percent)	(0.30%)	0.10%
Effect of U.S. tax rate change	0.00%	(422.60%)
Effective income tax rate (as a percent)	0.80%	60.90%
Changes in the uncertain income tax positions
Beginning balance	$ 1	$ 27
Tax positions related to prior years:
Lapses in statutes of limitations	(1)	(26)
Total	(1)	(26)
Ending balance		1
Amount of unrecognized tax benefits that would affect the effective tax rate if the tax benefits were recognized	0
Penalties and Interest Accrued	$ 0	$ 0

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The gross amount of unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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