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Receivables: | 12 Months Ended
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Dec. 30, 2017
Receivables: |
Receivables: | 5. Receivables: The Company’s current receivables consisted of the following:
|  | December 30, 2017 |  | December 31, 2016 |
Trade |  | $ | 9,800 |  | $ | 12,200 |
Royalty |  |  | 1,574,500 |  |  | 1,302,700 |
Other |  |  | 211,700 |  |  | 164,300 |
|  | $ | 1,796,000 |  | $ | 1,479,200 |
The activity in the allowance for doubtful accounts for trade receivables is as follows:
|  | December 30, 2017 |  | December 31, 2016 |  | December 26, 2015 |
Balance at beginning of year |  | $ | 2,100 |  | $ | 200 |  | $ | 1,600 |
Provisions charged to expense |  |  | (1,600) |  |  | 2,800 |  |  | 1,500 |
Deductions for amounts written-off |  |  | (100) |  |  | (900) |  |  | (2,900) |
Balance at end of year |  | $ | 400 |  | $ | 2,100 |  | $ | 200 |
As part of its normal operating procedures, the Company requires Standby Letters of Credit as collateral for a portion of its trade receivables.

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- Definition The entire disclosure for financing receivables. Examples of financing receivables include, but are not limited to, loans, trade accounts receivables, notes receivable, credit cards, and receivables relating to a lessor's right(s) to payment(s) from a lease other than an operating lease that is recognized as assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -URI http://asc.fasb.org/topic&trid=2196771 + Details
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- References No definition available. + Details
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