NOTES PAYABLE AND LONG-TERM DEBT - Narrative (Details) - USD ($) | Jan. 21, 2021 | Aug. 21, 2019 | Jun. 29, 2018 | Dec. 31, 2021 | Jan. 22, 2021 | Dec. 28, 2020 |
Letter of Credit | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Amount outstanding | | | | $ 700,000 | | |
Credit Agreement | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | | $ 14,000,000 | | | |
Percentage of eligible accounts receivable considered for borrowing base | | | 80.00% | | | |
Percentage of eligible inventory considered for borrowing base | | | 50.00% | | | |
Borrowing base, monetary benchmark | | | $ 3,000,000 | | | |
Basis spread of variable rate | | | 50.00% | | | |
Interest rate | | | | 3.00% | | |
Unused capacity, commitment fee percentage | | | | 0.25% | | |
Remaining borrowing capacity | | | | $ 13,300,000 | | |
Maximum borrowing capacity, option | | | | 17,300,000 | | |
Credit Agreement | Working Capital | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | | $ 6,000,000 | | | |
Remaining borrowing capacity | | | | 5,300,000 | | |
Credit Agreement | Business Acquisitions | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | | $ 8,000,000 | | | |
Percentage of portion allocated to acquisition purchase price | | | 75.00% | | | |
Remaining borrowing capacity | | | | $ 8,000,000 | | |
Credit Agreement | Additional Working Capital | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | | $ 4,000,000 | | | |
Credit Agreement | Maximum | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Debt cash flow leverage ratio | | | | 3 | | |
Credit Agreement | Minimum | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Debt service coverage ratio | | | | 1.15 | | |
Credit Agreement | Term Loan | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maturity period | | | 5 years | | | |
Credit Agreement | Letter of Credit | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | | $ 2,000,000 | | | |
Credit Agreement | LIBOR | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Basis spread of variable rate | | | 2.50% | | | |
Debt instrument, term of variable rate | | | 1 month | | | |
Credit Agreement | LIBOR | Maximum | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Basis spread of variable rate | | | 3.00% | | | |
Credit Agreement Amendment | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | | | | | $ 18,000,000 |
Loan Agreement | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | $ 3,200,000 | | | | |
Interest rate | | | | 2.73% | | |
Interest rate at expiration of advancing period | | | | 4.15% | | |
Loan Agreement | Real Estate | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Remaining borrowing capacity | | 2,000,000 | | | | |
Loan Agreement | Equipment | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Remaining borrowing capacity | | $ 1,200,000 | | | | |
Loan Agreement | Term Loan | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maturity period | | 5 years | | | | |
Loan Agreement | LIBOR | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Basis spread of variable rate | | | 2.50% | | | |
Debt instrument, term of variable rate | | | 1 month | | | |
Real Estate Loan Agreement | | | | | | |
Line of Credit Facility [Line Items] | | | | | | |
Maximum borrowing capacity | | | | | $ 900,000 | |
Maturity period | 5 years | | | | | |
Amortization period | 20 years | | | | | |
Interest rate | | | | | 4.00% | |