Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
Operating activities
Net income	$ 6,668	$ 6,589
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	407	605
Loss on disposal of property, plant, and equipment	0	277
Stock-based compensation	1,086	1,713
Amortization of debt issuance costs	194	228
Changes in assets and liabilities:
Receivables	7,441	17,709
Other assets	4,202	147
Accounts payable	(22,599)	(36,832)
Billings in excess of costs	2,415	1,094
Deferred taxes	(2,506)	(1,103)
Compensation and other employee benefits	12,059	11,687
Other liabilities	547	(429)
Net cash provided by operating activities	9,914	1,685
Investing activities
Purchases of capital assets	(24)	(31)
Proceeds from the disposition of assets	0	111
Net cash (used in) provided by investing activities	(24)	80
Financing activities
Repayments of long-term debt	(3,500)	(3,500)
Proceeds from revolver	18,000	59,000
Repayments of revolver	(18,000)	(59,000)
Proceeds from exercise of stock options	50	0
Payments of employee withholding taxes on share-based compensation	(577)	(627)
Net cash (used in) financing activities	(4,027)	(4,127)
Exchange rate effect on cash	175	989
Net change in cash	6,038	(1,373)
Cash-beginning of year	47,651	39,995
Cash-end of period	53,689	38,622
Supplemental Disclosure of Cash Flow Information:
Interest paid	1,036	1,408
Income taxes paid	$ 161	$ 2,320