BUSINESS SEGMENTS - Selected financial information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
BUSINESS SEGMENTS
Revenue	$ 335,286	$ 345,066	$ 334,503
Cost of sales	229,512	241,130	242,082
Gross profit	105,774	103,936	92,421
Services
BUSINESS SEGMENTS
Cost of sales	74,118	91,510	82,107
Products
BUSINESS SEGMENTS
Cost of sales	143,258	141,152	155,376
Asset Management Solutions
BUSINESS SEGMENTS
Revenue	211,583	215,467	215,167
Cost of sales	137,520	133,026	147,512
Gross profit	74,063	82,441	67,655
Asset Management Solutions \| Aircraft
BUSINESS SEGMENTS
Revenue	35,957	41,749	80,877
Cost of sales	24,009	27,223	58,138
Gross profit	11,948	14,526	22,739
Asset Management Solutions \| Engine
BUSINESS SEGMENTS
Revenue	175,626	173,718	134,290
Cost of sales	113,511	105,803	89,374
Gross profit	62,115	67,915	44,916
TechOps
BUSINESS SEGMENTS
Revenue	123,703	129,599	119,336
Cost of sales	91,992	108,104	94,570
Gross profit	31,711	21,495	24,766
TechOps \| MRO services
BUSINESS SEGMENTS
Revenue	93,743	107,970	102,535
Cost of sales	74,118	91,510	82,107
Gross profit	19,625	16,460	20,428
TechOps \| Products
BUSINESS SEGMENTS
Revenue	29,960	21,629	16,583
Cost of sales	17,874	16,594	12,822
Gross profit	$ 12,086	$ 5,035	3,761
TechOps \| Whole asset sales
BUSINESS SEGMENTS
Revenue			218
Cost of sales			(359)
Gross profit			$ 577