SEGMENTS (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Segment	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
SEGMENTS [Abstract]
Number of reportable operating segments | Segment			2
Summary financial information by reporting segment [Abstract]
Revenues	$ 82,142	$ 80,464	$ 164,697	$ 158,461
Percentage of Total Revenue	100.00%	100.00%	100.00%	100.00%
Operating Income	$ 396	$ 3,452	$ 70	$ 9,472
Total Assets	285,416		285,416		$ 295,299
Transportation and Skilled Trades [Member]
Summary financial information by reporting segment [Abstract]
Revenues	57,973	56,965	116,758	112,636
Healthcare and Other Professions [Member]
Summary financial information by reporting segment [Abstract]
Revenues	24,169	23,499	47,939	45,825
Reportable Segments [Member] | Transportation and Skilled Trades [Member]
Summary financial information by reporting segment [Abstract]
Revenues	$ 57,973	$ 56,965	$ 116,758	$ 112,636
Percentage of Total Revenue	70.60%	70.80%	70.90%	71.10%
Operating Income	$ 7,094	$ 11,256	$ 14,340	$ 23,581
Total Assets	151,086		151,086		156,531
Reportable Segments [Member] | Healthcare and Other Professions [Member]
Summary financial information by reporting segment [Abstract]
Revenues	$ 24,169	$ 23,499	$ 47,939	$ 45,825
Percentage of Total Revenue	29.40%	29.20%	29.10%	28.90%
Operating Income	$ 1,609	$ 2,962	$ 2,916	$ 5,911
Total Assets	36,785		36,785		33,959
Corporate [Member]
Summary financial information by reporting segment [Abstract]
Revenues	0	0	0	0
Operating Income	(8,307)	$ (10,766)	(17,186)	$ (20,020)
Total Assets	$ 97,545		$ 97,545		$ 104,809