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LONG TERM DEBT AND NOTES PAYABLE TO BANK (MidCap) (Details) - USD ($)
6 Months Ended
Nov. 09, 2018
Jul. 01, 2018
Jun. 04, 2018
Mar. 31, 2017
Feb. 29, 2016
Jun. 30, 2019
Jun. 30, 2018
Mar. 31, 2019
Mar. 01, 2019
Jun. 03, 2018
Jun. 23, 2017
Apr. 26, 2017
Debt Instrument [Line Items]                        
Principal amount due to related party                     $ 129,000.0  
Loan fees paid           $ 22,200 $ 109,000          
First amendments to Kletter Notes [Member]                        
Debt Instrument [Line Items]                        
One-time prepayment of principal amount               $ 500,000.0 $ 500,000.0      
Line of Credit [Member] | MidCap 2016 Loan [Member]                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity     $ 10,000,000.0 $ 8,000,000.0 $ 6,000,000.0         $ 8,000,000.0    
Line of Credit Facility Borrowing Capacity Percent of Eligible Domestic Accounts Receivable       85.00%                
Eligible inventory       $ 2,500,000                
Percent of eligible inventory       75.00%                
Line of Credit Facility Borrowing Capacity Appraised Net Forced Liquidation Value Of Eligible Fixed Assets       $ 400,000                
Percent of eligible fixed assets       40.00%                
Minimum borrowing capacity required       $ 350,000.0                
Fixed Charge Coverage Ratio, multiple used to replace the covenant       1.1                
Increase in amount available under credit facility   $ 350,000.0                    
Loan fees paid     $ 15,000.0 $ 20,000.0                
Interest penalties paid as a result of laon agreement termination $ 106,800                      
Equipment Sublimit [Member] | Line of Credit [Member] | MidCap 2016 Loan [Member]                        
Debt Instrument [Line Items]                        
Eligible inventory         $ 500,000              
Percent of eligible inventory accounts receivable         85.00%              
Eligible accounts receivable         $ 2,500,000              
Percent of eligible inventory         75.00%              
Percent of eligible fixed assets       45.00% 40.00%              
Amortization period for equipment sublimit (in months)         60 months              
Line of Credit Facility Borrowing Capacity Eligible Fixed Assets       $ 1,750,000               $ 1,750,000
Secured Debt [Member] | Line of Credit [Member] | MidCap 2016 Loan [Member]                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity         $ 6,000,000.0              
Collateral-monitoring fee percent         0.275%              
Annual facility fee         1.00%              
Unused line fee percent         0.50%              
Fixed Charge Coverage Ratio, multiple achieved on an annual basis         1.0              
Minimum borrowing capacity required         $ 350,000.0              
Amount eligible for sale or refinance         $ 3,000,000.0              
Secured Debt [Member] | Line of Credit [Member] | MidCap 2016 Loan [Member] | Prime Rate [Member]                        
Debt Instrument [Line Items]                        
Basis spread on variable rate         2.50%              
Prime rate percent         5.25%              
Interest rate increase         3.00%              
BofA Loan Agreement [Member]                        
Debt Instrument [Line Items]                        
Interest expense on borrowings           0            
Interest rate increase 2.00%                      
Remaining borrowing capacity           $ 2,300,000