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Contract Assets and Liabilities (Tables) | 12 Months Ended
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Dec. 28, 2019
Contract Assets and Liabilities [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] | Net contract assets (liabilities) consisted of the following:
| December 28, 2019 |  | December 29, 2018 |  | $ Change |  | % Change
Contract assets and unbilled receivables | $ | 921,082 |  |  | $ | 3,089,663 |  |  | $ | (2,168,581 | ) |  | (70 | )%
Contract liabilities and billings in excess of revenue earned | (796,794 | ) |  | (388,933 | ) |  | (407,861 | ) |  | 105 | %
Contract liabilities, noncurrent | (6,557 | ) |  | (17,294 | ) |  | 10,737 |  |  | (62 | )%
Net contract assets | $ | 117,731 |  |  | $ | 2,683,436 |  |  | $ | (2,565,705 | ) |  | (96 | )%

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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