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Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Current [Abstract]    
Federal $ 0 $ (58)
State 21 20
Current income tax 21 (38)
Deferred [Abstract]    
Federal 129 (86)
State 125 (25)
Deferred income tax 254 (111)
Income tax expense (benefit) 275 (149)
Difference between income tax benefit and U.S. federal income tax rate to pretax loss from continuing operations [Abstract]    
Computed expected tax expense (benefit) (869) (827)
State tax (benefit)expense, net of federal effect (272) (106)
Other 221 377
Net increase (decrease) in valuation allowance 1,195 407
Income tax expense (benefit) $ 275 $ (149)
Federal corporate tax rate 21.00% 21.00%
Deferred tax assets/(liabilities) [Abstract]    
Net operating loss carryforward $ 45,819 $ 43,433
Intangible assets 1,450 2,046
Inventory 51 51
Reserves & accrued expenses 896 992
Property & equipment (178)  
Property & equipment   389
Non-cash compensation 808 850
Goodwill (815) (667)
Right of use asset (249) (331)
Lease liability 272 350
Total net deferred tax assets 48,054 47,113
Less: valuation allowance (48,308) (47,113)
Net deferred tax assets/(liabilities) (254) 0
Valuation allowance - Deferred tax asset change in amount 1,195 407
Federal operating loss carryforwards, net $ 200,976 $ 200,976
Earliest open tax year subject to examination 2016