Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Revenues	$ 153,604	$ 202,729	$ 512,147	$ 640,649
Cost of Revenues	134,685	174,839	443,192	554,178
Gross Profit	18,919	27,890	68,955	86,471
Selling, General and Administrative Expenses	14,126	17,614	46,502	52,739
Amortization Expense	327	330	978	999
Operating Income	4,466	9,946	21,475	32,733
Interest and Other Expense	4,799	5,152	14,583	15,305
(Loss) Income Before Provision for Income Taxes	(333)	4,794	6,892	17,428
(Benefit) Provision for Income Taxes	(1,480)	2,240	461	8,076
Net Income	1,147	2,554	6,431	9,352
Less: Non-controlling interest in subsidiary’s income	0	0	0	1
Net Income Attributable to CVG Stockholders	$ 1,147	$ 2,554	$ 6,431	$ 9,351
Earnings per Common Share:
Basic and Diluted (in dollars per share)	$ 0.04	$ 0.09	$ 0.22	$ 0.32
Weighted Average Shares Outstanding:
Basic (in shares)	29,449	29,149	29,449	29,149
Diluted (in shares)	30,101	29,384	29,783	29,309