BUSINESS AND SUMMARY OF ACCOUNTING POLICIES - Retail automotive industrial and aerospace (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 13,350,000	$ 14,322,000
Florida Pneumatic [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 10,030,000	$ 10,440,000
Percentage of revenue	100.00%	100.00%
(Decrease) increase	$ (410,000)
Percentage of (Decrease) increase	(3.90%)
Florida Pneumatic [Member] | Automotive
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 3,232,000	$ 3,866,000
Percentage of revenue	32.20%	37.00%
(Decrease) increase	$ (634,000)
Percentage of (Decrease) increase	(16.40%)
Florida Pneumatic [Member] | Retail
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 2,990,000	$ 2,709,000
Percentage of revenue	29.80%	26.00%
(Decrease) increase	$ 281,000
Percentage of (Decrease) increase	10.40%
Florida Pneumatic [Member] | Aerospace
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 2,599,000	$ 2,360,000
Percentage of revenue	25.90%	22.60%
(Decrease) increase	$ 239,000
Percentage of (Decrease) increase	10.10%
Florida Pneumatic [Member] | Industrial
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 1,062,000	$ 1,325,000
Percentage of revenue	10.60%	12.70%
(Decrease) increase	$ (263,000)
Percentage of (Decrease) increase	(19.80%)
Florida Pneumatic [Member] | Other
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 147,000	$ 180,000
Percentage of revenue	1.50%	1.70%
(Decrease) increase	$ (33,000)
Percentage of (Decrease) increase	(18.30%)
Hy-Tech [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 3,320,000	$ 3,882,000
Percentage of revenue	100.00%	100.00%
(Decrease) increase	$ (562,000)
Percentage of (Decrease) increase	(14.50%)
Hy-Tech [Member] | OEM
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 1,439,000	$ 1,336,000
Percentage of revenue	43.30%	34.40%
(Decrease) increase	$ 103,000
Percentage of (Decrease) increase	7.70%
Hy-Tech [Member] | ATP
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 1,061,000	$ 1,986,000
Percentage of revenue	32.00%	51.20%
(Decrease) increase	$ (925,000)
Percentage of (Decrease) increase	(46.60%)
Hy-Tech [Member] | PTG
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 735,000	$ 355,000
Percentage of revenue	22.10%	9.10%
(Decrease) increase	$ 380,000
Percentage of (Decrease) increase	107.00%
Hy-Tech [Member] | Other
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 85,000	$ 205,000
Percentage of revenue	2.60%	5.30%
(Decrease) increase	$ (120,000)
Percentage of (Decrease) increase	(58.50%)