Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Reconciliation of income tax provision relative to continuing operations (Details)

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INCOME TAXES - Reconciliation of income tax provision relative to continuing operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Percent [Abstract]    
Federal income tax benefit at U.S. statutory rate 21.00% 34.00%
State taxes, net of federal benefit 13.20% 8.70%
Change in valuation allowance, exclusive of Tax Reform impact (44.00%) (57.50%)
Effect of Tax Reform on net deferred taxes 0.00% 17.20%
Permanent differences (6.30%) (1.70%)
Credits 3.70% 2.20%
Other 0.20% 0.00%
Total income tax provision, percent (12.20%) 2.90%
Effective Income Tax Rate Reconciliation, Amount [Abstract]    
Federal income tax benefit at U.S. statutory rate $ (817) $ (1,760)
State taxes, net of federal benefit (515) (452)
Change in valuation allowance, exclusive of Tax Reform impact 1,714 2,979
Effect of Tax Reform on net deferred taxes 0 (890)
Permanent differences 247 91
Credits (146) (116)
Other (7) (2)
Total income tax provision, amount $ 476 $ (150)