NOTES PAYABLE AND LONG-TERM DEBT - Narrative (Details)	Aug. 21, 2019 USD ($)	Jun. 29, 2018 USD ($)	Jun. 30, 2019 USD ($)
Line of Credit Facility [Line Items]
Interest rate			5.05%
Term loan
Line of Credit Facility [Line Items]
Term at time of borrowing		5 years
Interest rate			5.05%
Credit Agreement
Line of Credit Facility [Line Items]
Extension of maturity date		2 years
Maximum borrowing capacity		$ 14,000,000.0
Percentage of eligible accounts receivable considered for borrowing base		80.00%
Percentage of eligible inventory considered for borrowing base		50.00%
Amount of covenant for borrowing base		$ 3,000,000
Basis spread of variable rate		0.00%
Unused capacity, commitment fee percentage		0.25%
Remaining borrowing capacity			$ 12,400,000
Credit Agreement | Maximum
Line of Credit Facility [Line Items]
Debt cash flow leverage ratio		3.0
Credit Agreement | Minimum
Line of Credit Facility [Line Items]
Debt service coverage ratio		1.15
Credit Agreement | LIBOR
Line of Credit Facility [Line Items]
Basis spread of variable rate		2.50%
Credit Agreement | LIBOR | Maximum
Line of Credit Facility [Line Items]
Basis spread of variable rate		3.00%
Credit Agreement | Working Capital
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 6,000,000.0
Remaining borrowing capacity			5,900,000
Credit Agreement | Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity		2,000,000.0
Amount outstanding			100,000
Credit Agreement | Acquisitions
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 8,000,000.0
Percentage of portion allocated to acquisition purchase price		75.00%
Remaining borrowing capacity			$ 6,500,000
Subsequent Event | Loan Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 3,200,000.0
Term at time of borrowing	5 years
Interest rate	4.79%
Interest rate at expiration of advance period	4.15%
Subsequent Event | Loan Agreement | LIBOR
Line of Credit Facility [Line Items]
Basis spread of variable rate	2.50%
Subsequent Event | Improvements | Loan Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 2,000,000.0
Amortization period by which monthly payment is determined	20 years
Subsequent Event | Equipment | Loan Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,200,000.0
Amortization period by which monthly payment is determined	6 years