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ACQUISITIONS, W.J. Byrnes & Co., Inc. (Details)
$ in Thousands
12 Months Ended
Mar. 31, 2017
USD ($)
Location
Sep. 30, 2018
USD ($)
Location
Sep. 30, 2017
USD ($)
Business Combination, Consideration Transferred [Abstract]      
Consideration paid in cash   $ 0 $ 100
Fair Value Assets Acquired and Liabilities Assumed [Abstract]      
Goodwill   $ 11,458 $ 9,745
W.J. Byrnes & Co., Inc. [Member]      
Business Combination, Consideration Transferred [Abstract]      
Business acquisition, percentage of outstanding common stock 100.00%    
Number of locations | Location 5 5  
Consideration paid in cash $ 100    
Fair Value Assets Acquired and Liabilities Assumed [Abstract]      
Cash 116    
Accounts receivable, net of allowance for doubtful accounts 299    
Customer relationships and other intangibles 240    
Goodwill 658    
Security deposits 15    
Note payable - bank (225)    
Accounts payable - trade (891)    
Accrued expenses and other current liabilities (112)    
Purchase price, net of cash received $ 100