BUSINESS AND SUMMARY OF ACCOUNTING POLICIES - Retail automotive industrial and aerospace (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 16,163,000	$ 17,810,000	$ 31,906,000	$ 31,831,000
Florida Pneumatic
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 10,845,000	$ 12,666,000	$ 20,769,000	$ 22,947,000
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
Increase (decrease)		$ (1,821,000)		$ (2,178,000)
Percentage of Increase (decrease)		(14.40%)		(9.50%)
Florida Pneumatic | Automotive
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 3,503,000	$ 3,853,000	$ 6,762,000	$ 7,734,000
Percentage of revenue	32.30%	30.40%	32.60%	33.70%
Increase (decrease)		$ (350,000)		$ (972,000)
Percentage of Increase (decrease)		(9.10%)		(12.60%)
Florida Pneumatic | Retail
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 2,920,000	$ 4,826,000	$ 5,470,000	$ 7,845,000
Percentage of revenue	26.90%	38.10%	26.30%	34.20%
Increase (decrease)		$ (1,906,000)		$ (2,375,000)
Percentage of Increase (decrease)		(39.50%)		(30.30%)
Florida Pneumatic | Industrial
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 1,337,000	$ 1,705,000	$ 2,914,000	$ 3,111,000
Percentage of revenue	12.30%	13.50%	14.00%	13.60%
Increase (decrease)		$ (368,000)		$ (197,000)
Percentage of Increase (decrease)		(21.60%)		(6.30%)
Florida Pneumatic | Aerospace
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 2,963,000	$ 2,179,000	$ 5,374,000	$ 3,994,000
Percentage of revenue	27.30%	17.20%	25.90%	17.40%
Increase (decrease)		$ 784,000		$ 1,380,000
Percentage of Increase (decrease)		36.00%		34.60%
Florida Pneumatic | Other
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 122,000	$ 103,000	$ 249,000	$ 263,000
Percentage of revenue	1.20%	0.80%	1.20%	1.10%
Increase (decrease)		$ 19,000		$ (14,000)
Percentage of Increase (decrease)		18.40%		(5.30%)
Hy-Tech
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 5,318,000	$ 5,144,000	$ 11,137,000	$ 8,884,000
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
Increase (decrease)		$ 174,000		$ 2,253,000
Percentage of Increase (decrease)		3.40%		25.40%
Hy-Tech | Other
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 92,000	$ 74,000	$ 209,000	$ 168,000
Percentage of revenue	1.70%	1.40%	1.90%	1.90%
Increase (decrease)		$ 18,000		$ 41,000
Percentage of Increase (decrease)		24.30%		24.40%
Hy-Tech | OEM
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 2,676,000	$ 2,542,000	$ 5,749,000	$ 4,507,000
Percentage of revenue	50.30%	49.40%	51.60%	50.70%
Increase (decrease)		$ 134,000		$ 1,242,000
Percentage of Increase (decrease)		5.30%		27.60%
Hy-Tech | PTG
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 1,742,000	$ 1,583,000	$ 3,674,000	$ 2,522,000
Percentage of revenue	32.80%	30.80%	33.00%	28.40%
Increase (decrease)		$ 159,000		$ 1,152,000
Percentage of Increase (decrease)		10.00%		45.70%
Hy-Tech | ATP
BUSINESS AND SUMMARY OF ACCOUNTING POLICIES
Revenues	$ 808,000	$ 945,000	$ 1,505,000	$ 1,687,000
Percentage of revenue	15.20%	18.40%	13.50%	19.00%
Increase (decrease)		$ (137,000)		$ (182,000)
Percentage of Increase (decrease)		(14.50%)		(10.80%)