SUMMARY OF ACCOUNTING POLICIES - Retail automotive industrial and aerospace (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 49,136,000	$ 58,674,000
Florida Pneumatic [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 38,276,000	$ 43,357,000
Percentage of revenue	100.00%	100.00%
(Decrease) increase	$ (5,081,000)
Percentage of (Decrease) increase	(11.70%)
Florida Pneumatic [Member] | Automotive
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 13,270,000	$ 14,800,000
Percentage of revenue	34.70%	34.10%
(Decrease) increase	$ (1,530,000)
Percentage of (Decrease) increase	(10.30%)
Florida Pneumatic [Member] | Retail
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 12,940,000	$ 12,467,000
Percentage of revenue	33.80%	28.80%
(Decrease) increase	$ 473,000
Percentage of (Decrease) increase	3.80%
Florida Pneumatic [Member] | Aerospace
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 8,087,000	$ 10,513,000
Percentage of revenue	21.10%	24.20%
(Decrease) increase	$ (2,426,000)
Percentage of (Decrease) increase	(23.10%)
Florida Pneumatic [Member] | Industrial
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 3,481,000	$ 4,969,000
Percentage of revenue	9.10%	11.50%
(Decrease) increase	$ (1,488,000)
Percentage of (Decrease) increase	(29.90%)
Florida Pneumatic [Member] | Other
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 498,000	$ 608,000
Percentage of revenue	1.30%	1.40%
(Decrease) increase	$ (110,000)
Percentage of (Decrease) increase	(18.10%)
Hy-Tech [Member]
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 10,860,000	$ 15,317,000
Percentage of revenue	100.00%	100.00%
(Decrease) increase	$ (4,457,000)
Percentage of (Decrease) increase	(29.10%)
Hy-Tech [Member] | OEM
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 4,272,000	$ 6,790,000
Percentage of revenue	39.40%	44.30%
(Decrease) increase	$ (2,518,000)
Percentage of (Decrease) increase	(37.10%)
Hy-Tech [Member] | ATP
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 2,796,000	$ 6,290,000
Percentage of revenue	25.70%	41.10%
(Decrease) increase	$ (3,494,000)
Percentage of (Decrease) increase	(55.50%)
Hy-Tech [Member] | PTG
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 3,326,000	$ 1,475,000
Percentage of revenue	30.60%	9.60%
(Decrease) increase	$ 1,851,000
Percentage of (Decrease) increase	125.50%
Hy-Tech [Member] | Other
Schedule Of Summary Of Accounting Policies [Line Items]
Revenues	$ 466,000	$ 762,000
Percentage of revenue	4.30%	5.00%
(Decrease) increase	$ (296,000)
Percentage of (Decrease) increase	(38.80%)