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LONG-TERM DEBT (Whitmore Term Loan) - Additional Information (Detail) - Whitmore - Secured Term Loan - USD ($)
3 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Debt Instrument [Line Items]    
Debt instrument, periodic principal payment $ 140,000  
Outstanding borrowings under term loan $ 11,319,000 $ 11,459,000
LIBOR    
Debt Instrument [Line Items]    
Spread on interest rate 2.00%