BUSINESS AND SUMMARY OF ACCOUNTING POLICIES - Retail automotive industrial and aerospace (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 14,021,000	$ 13,945,000
Florida Pneumatic
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 10,281,000	$ 10,901,000
Percentage of revenue	100.00%	100.00%
Increase (decrease)		$ (620,000)
Percentage of Increase (decrease)		(5.70%)
Florida Pneumatic | Automotive
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 3,881,000	$ 4,102,000
Percentage of revenue	37.70%	37.60%
Increase (decrease)		$ (221,000)
Percentage of Increase (decrease)		(5.40%)
Florida Pneumatic | Retail
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 3,020,000	$ 3,790,000
Percentage of revenue	29.50%	34.80%
Increase (decrease)		$ (770,000)
Percentage of Increase (decrease)		(20.20%)
Florida Pneumatic | Industrial
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 1,444,000	$ 1,359,000
Percentage of revenue	14.00%	12.50%
Increase (decrease)		$ 85,000
Percentage of Increase (decrease)		6.30%
Florida Pneumatic | Aerospace
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 1,777,000	$ 1,528,000
Percentage of revenue	17.30%	14.00%
Increase (decrease)		$ 249,000
Percentage of Increase (decrease)		16.30%
Florida Pneumatic | Other
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 159,000	$ 122,000
Percentage of revenue	1.50%	1.10%
Increase (decrease)		$ 37,000
Percentage of Increase (decrease)		30.30%
Hy-Tech [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 3,740,000	$ 3,044,000
Percentage of revenue	100.00%	100.00%
Increase (decrease)		$ 696,000
Percentage of Increase (decrease)		22.90%
Hy-Tech [Member] | OEM
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 1,965,000	$ 1,611,000
Percentage of revenue	52.60%	52.90%
Increase (decrease)		$ 354,000
Percentage of Increase (decrease)		22.00%
Hy-Tech [Member] | ATP
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 742,000	$ 713,000
Percentage of revenue	19.80%	23.40%
Increase (decrease)		$ 29,000
Percentage of Increase (decrease)		4.10%
Hy-Tech [Member] | PTG
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 940,000	$ 646,000
Percentage of revenue	25.10%	21.20%
Increase (decrease)		$ 294,000
Percentage of Increase (decrease)		45.50%
Hy-Tech [Member] | Other
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 93,000	$ 74,000
Percentage of revenue	2.50%	2.50%
Increase (decrease)		$ 19,000
Percentage of Increase (decrease)		25.70%