ACQUISITIONS - PROFORMA (Details) - USD ($)	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018
ACQUISITIONS
Revenue	$ 129,615,000	$ 126,613,000
Pre-tax loss from continuing operations	$ (19,325,000)	(4,838,000)
Percentage of increase in total revenue due to revenue of the acquired companies	18.50%
Basic and diluted loss per share:
Goodwill added due to acquisition	$ 4,932,000
Goodwill deductible amount	3,092,000
Inovate
ACQUISITIONS
Revenue	120,439,000	114,535,000
Pre-tax loss from continuing operations	$ (21,505,000)	$ (7,127,000)
Basic and diluted loss per share:
Loss from continuing operations	$ (9.59)	$ (3.04)
Average shares outstanding	1,711	1,697
Doors
Basic and diluted loss per share:
Goodwill added due to acquisition	$ 2,198,000
HVAC \| Concrete Aggregates and Construction Supplies
Basic and diluted loss per share:
Goodwill added due to acquisition	$ 2,734,000

Percentage of increase in the Company's total revenue due to the revenue of the acquired companies.

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Per basic and diluted share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

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Average shares outstanding considered for calculation of earning per share, as if the business combination had been completed at the beginning of a period

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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