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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended 18 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:            
Net loss     $ (7,565,000) $ (5,270,000)    
Adjustments to reconcile net loss to net cash flows used in operating activities:            
Depreciation and amortization     560,000 680,000    
Amortization of operating lease right-of-use asset     123,000      
Amortization of finance lease right-of-use asset     30,000      
(Accretion) amortization of deferred financing costs, debt discounts and debt premiums     (50,000) 10,000    
Gain on settlement of liability, net $ (1,084,000) $ (6,000) (1,251,000) (147,000)    
Loss on settlement of equity instrument       385,000    
Loss on litigation     266,000      
Loss on issuance of convertible notes     1,870,000 928,000    
Stock-based compensation     307,000 220,000    
Impairment of goodwill       294,000    
Provision for losses on doubtful accounts     463,000 224,000    
Warrant revaluation     582,000 (584,000)    
Loss on modification of warrants     1,128,000      
Derivative revaluation     415,000 1,000    
Changes in operating assets and liabilities:            
Accounts receivable, net     (656,000) (246,000)    
Inventories, net     8,000 (10,000)    
Other assets     177,000 263,000    
Accounts payable     (1,316,000) (27,000)    
Operating lease liabilities     (117,000)      
Accrued expenses and other liabilities     139,000 (332,000)    
Net cash used in operating activities     (4,887,000) (3,611,000)    
CASH FLOWS FROM INVESTING ACTIVITIES:            
Purchase of property and equipment     (30,000) (44,000)    
Net cash used in investing activities     (30,000) (44,000)    
CASH FLOWS FROM FINANCING ACTIVITIES:            
Principal payments on finance lease obligations     (28,000) (31,000)    
Payment of deferred financing costs     (120,000) (138,000)    
Payment of fractional common shares in conjunction with reverse stock split     (1,000)      
Issuance of common stock, net of issuance costs     2,410,000 618,000    
Proceeds from exercise of warrants     1,575,000 1,092,000    
Proceeds from long-term debt       300,000    
Proceeds from convertible notes     2,150,000 1,660,000    
Principal payments on convertible notes     (50,000)      
Principal payments on long-term debt     (231,000) (196,000)    
Net cash flows provided by financing activities     5,705,000 3,305,000    
NET CHANGE IN CASH     788,000 (350,000)    
CASH AT BEGINNING OF PERIOD     381,000 421,000 $ 421,000 $ 421,000
CASH AT END OF PERIOD $ 1,169,000 $ 71,000 1,169,000 71,000 $ 381,000 $ 1,169,000
SUPPLEMENTAL CASH FLOW INFORMATION            
Cash paid during the period for interest     18,000 26,000    
SUPPLEMENTAL DISCLOSURE OF CONSULTING SERVICES OR ANY OTHER NON-CASH COMMON STOCK RELATED ACTIVITY            
Purchases of equipment financed through accounts payable       34,000    
Equipment financed through capital leases       107,000    
Deferred debt issuance cost financed through accounts payable       57,000    
Discount of 9% on issuance of convertible bridge notes     188,000 164,000    
Other current liabilities canceled in exchange for common shares       1,897,000    
Beneficial conversion feature on issuance of convertible notes     1,792,000 1,076,000    
Initial valuation of derivative liability recorded in conjunction with issuance of convertible notes     1,858,000 142,000    
Initial valuation of warrant liability recorded in conjunction with issuance of convertible notes       1,205,000    
Liabilities exchanged for convertible notes     2,150,000      
Liability recorded related to equity purchase agreement repricing     460,000 460,000    
Warrant liability canceled due to settlement of equity instruments       $ 456,000    
Right-of-use assets obtained in exchange for lease obligations     750,000      
Amounts included in measurement of lease liabilities     144,000      
Write-off warrant liability in conjunction with warrant exercises     2,364,000      
Write-off of debt discounts (net of debt premiums) in conjunction with convertible note conversions     527,000      
Write-off of derivative liability in conjunction with convertible note conversions     477,000      
Convertible Debt [Member]            
SUPPLEMENTAL DISCLOSURE OF CONSULTING SERVICES OR ANY OTHER NON-CASH COMMON STOCK RELATED ACTIVITY            
Conversion of convertible debt plus interest into common stock     $ 7,272,000