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Product Warranties | 12 Months Ended
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Dec. 31, 2018
Product Warranties Disclosures [Abstract] |
Product Warranty Disclosure [Text Block] | Note 6 – Product Warranties A summary of the Company’s warranty liability activity, which is included in accrued liabilities in the accompanying balance sheets as of December 31, 2018 and 2017, is as follows:
|  | 2018 |  |  | 2017 |
Warranty liability, beginning of year |  | $ | 181,000 |  |  | $ | 213,000 |
Accruals |  |  | 51,000 |  |  |  | 69,000 |
Payments |  |  | (32,000 | ) |  |  | (114,000 | )
Adjustments and other |  |  | 57,000 |  |  |  | 13,000 |
Warranty liability, end of year |  | $ | 257,000 |  |  | $ | 181,000 |

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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -URI http://asc.fasb.org/topic&trid=2155896 + Details
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