SEGMENTS (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) Segment	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
SEGMENTS [Abstract]
Number of reportable operating segments | Segment			2
Summary financial information by reporting segment [Abstract]
Revenues	$ 91,813	$ 89,059	$ 256,510	$ 247,520
Percentage of Total Revenue	100.00%	100.00%	100.00%	100.00%
Operating income (Loss)	$ 4,880	$ 5,745	$ 4,951	$ 15,217
Total Assets	291,276		291,276		$ 295,299
Transportation and Skilled Trades [Member]
Summary financial information by reporting segment [Abstract]
Revenues	67,329	64,950	184,087	177,586
Healthcare and Other Professions [Member]
Summary financial information by reporting segment [Abstract]
Revenues	24,484	24,109	72,423	69,934
Reportable Segments [Member] | Transportation and Skilled Trades [Member]
Summary financial information by reporting segment [Abstract]
Revenues	$ 67,329	$ 64,950	$ 184,087	$ 177,586
Percentage of Total Revenue	73.30%	72.90%	71.80%	71.70%
Operating income (Loss)	$ 11,768	$ 11,842	$ 26,108	$ 35,423
Total Assets	150,715		150,715		156,531
Reportable Segments [Member] | Healthcare and Other Professions [Member]
Summary financial information by reporting segment [Abstract]
Revenues	$ 24,484	$ 24,109	$ 72,423	$ 69,934
Percentage of Total Revenue	26.70%	27.10%	28.20%	28.30%
Operating income (Loss)	$ 1,180	$ 1,833	$ 4,095	$ 7,743
Total Assets	36,263		36,263		33,959
Corporate [Member]
Summary financial information by reporting segment [Abstract]
Revenues	0	0	0	0
Operating income (Loss)	(8,068)	$ (7,930)	(25,252)	$ (27,949)
Total Assets	$ 104,298		$ 104,298		$ 104,809