Accounting Policies and New Accounting Pronouncements (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 26, 2015
Cash	$ 800
Reclassification to accounts payable for outstanding checks	0	$ 300
Accounts receivable	10,455	24,097
Debt issue costs capitalized	38	90
Goodwill	2,806	2,806
Intangible assets	100
Accumulated amortization	3,100
Amortization expense	100	200
Automation Segment [Member]
Goodwill	2,086	$ 2,086
EPCM [Member]
Goodwill	700
Intangible assets	200
Accumulated amortization	$ 3,000
Sales Revenue, Net [Member] \| Customer One [Member]
Concentration risk, percentage	15.40%	15.00%
Sales Revenue, Net [Member] \| Customer One [Member] \| Customer Concentration Risk [Member]
Accounts receivable	$ 300	$ 1,800
Sales Revenue, Net [Member] \| Customer Two [Member]
Concentration risk, percentage	14.00%	14.80%
Sales Revenue, Net [Member] \| Customer Two [Member] \| Customer Concentration Risk [Member]
Accounts receivable	$ 1,100	$ 5,400

Reclassification to accounts payable for outstanding checks.

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Amount of amortization expense attributable to debt issuance costs.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The current portion of nonphysical assets, excluding financial assets, if these assets are classified into the current and noncurrent portions.

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