BUSINESS AND SUMMARY OF ACCOUNTING POLICIES - Additional information (Details Textual)		3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 18, 2019 USD ($) ft²	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018	Jan. 01, 2019 USD ($)
Schedule Of Summary Of Accounting Policies [Line Items]
Operating Lease, Right-of-Use Asset		$ 2,074,000	$ 0	$ 2,074,000	$ 0		$ 394,000
Operating Lease, Liability		2,319,000	$ 0	2,319,000	$ 0		418,000
Accrued Rent, Current							$ 24,000
Operating Lease, Expense		78,000		159,000
Gain (Loss) on Disposition of Assets for Financial Service Operations	$ 7,817,000
Other Assets [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Operating Lease, Right-of-Use Asset		2,327,000		2,327,000
Other Current Liabilities [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Operating Lease, Liability		647,000		647,000
Other Noncurrent Liabilities [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Operating Lease, Liability, Noncurrent		$ 1,672,000		$ 1,672,000
Accounts Receivable [Member] | Home Depot [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Concentration Risk, Percentage				33.20%		32.60%
Sales Revenue, Net [Member] | Home Depot [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Concentration Risk, Percentage		23.00%	20.30%	24.80%	24.20%
Florida Pneumatic [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Area of Land | ft²	42,000
Lease Income	$ 32,345
Gain (Loss) on Disposition of Assets for Financial Service Operations	$ 7,817,000