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Property, Plant and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 23,527,090	$ 28,069,293
Accumulated depreciation and amortization	(20,849,987)	(23,479,872)
Net property, plant and equipment	2,677,103	4,589,421
Depreciation expense	1,500,000	2,600,000	$ 2,400,000
Estimated sale price of land (WON)	$ 7,600,000
Minimum
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Useful Life	10 years
Land
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 0	877,485
Buildings
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 0	2,298,367
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Useful Life	10 years
Equipment
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 18,765,548	19,696,919
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful Life	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 3,659,559	3,652,395
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 789,067	886,985
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Equipment under construction
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 312,916	$ 657,142

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.14)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 14
-Article 5

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Revenue from the sale of land in the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 210
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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