CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 30, 2012	Apr. 01, 2011
Cash flows from operating activities:
Net income (loss)	$ 360	$ (1,138)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	210	251
Other	224	(58)
Change in assets and liabilities:
Decrease in restricted cash	246	267
Decrease in accounts receivable, net	34	3,777
Decrease (increase) in inventories	265	(32)
Increase in costs and estimated earnings in excess of billings on uncompleted contracts	(2,155)	(208)
Increase in prepaid expenses and deposits	(409)	(12)
Increase (decrease) in accounts payable	(535)	92
Decrease in accrued liabilities	(3)	(827)
Increase in pension and retirement obligations	106	267
Increase (decrease) in customer deposits	(338)	875
Net cash provided by (used in) operating activities	(1,995)	3,254
Cash flows from investing activities:
Purchases of property, plant and equipment	(40)	(49)
Proceeds from sale of marketable securities	139	160
Net cash provided by investing activities	99	111
Cash flows from financing activities:
Net principal payments on line-of-credit agreement		(500)
Principal payments on long-term debt	(38)	(37)
Net cash used in financing activities	(38)	(537)
Net increase (decrease) in cash and cash equivalents	(1,934)	2,828
Cash and cash equivalents at beginning of the period	3,932	1,024
Cash and cash equivalents at end of the period	1,998	3,852
Non-cash investing and financing activities:
Unrealized gain on marketable securities	168	24
Supplemental Disclosures of Cash Flow Information
Cash paid for interest	161	138
Cash paid for income taxes	$ 17	$ 19

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).