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Consolidated Statements of Shareholders' Equity - USD ($) | Common Stock [Member] | Treasury Stock [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Total
--- | --- | --- | --- | --- | ---
Balances at Jan. 03, 2015 | $ 28,932,058 | $ (19,105,723) | $ 87,680,667 | $ (22,532,095) | $ 74,974,907
Balances (in shares) at Jan. 03, 2015 | 8,938,742 | (2,694,729) |  |  |
Net income |  |  | 5,727,043 |  | 5,727,043
Cash dividends declared |  |  | (2,810,669) |  | (2,810,669)
Currency translation adjustment |  |  |  | (2,009,277) | (2,009,277)
Change in fair value of interest rate swap |  |  |  |  | 0
Change in pension and other postretirement benefit costs, net of tax |  |  |  | 3,458,060 | 3,458,060
Issuance of Common Stock for directors' fees | $ 64,992 |  |  |  | 64,992
Issuance of Common Stock for directors' fees (in shares) | 3,719 |  |  |  |
Balances at Jan. 02, 2016 | $ 28,997,050 | $ (19,105,723) | 90,597,041 | (21,083,312) | 79,405,056
Balances (in shares) at Jan. 02, 2016 | 8,942,461 | (2,694,729) |  |  |
Net income |  |  | 7,785,323 |  | 7,785,323
Cash dividends declared |  |  | (2,751,148) |  | (2,751,148)
Currency translation adjustment |  |  |  | (1,010,983) | (1,010,983)
Change in fair value of interest rate swap |  |  |  |  | 0
Change in pension and other postretirement benefit costs, net of tax |  |  |  | (1,110,306) | (1,110,306)
Issuance of Common Stock for directors' fees | $ 149,572 |  |  |  | 149,572
Issuance of Common Stock for directors' fees (in shares) | 8,366 |  |  |  |
Balances at Dec. 31, 2016 | $ 29,146,622 | $ (19,105,723) | 95,631,216 | (23,204,601) | 82,467,514
Balances (in shares) at Dec. 31, 2016 | 8,950,827 | (2,694,729) |  |  |
Net income |  |  | 5,045,255 |  | 5,045,255
Cash dividends declared |  |  | (2,754,568) |  | (2,754,568)
Currency translation adjustment |  |  |  | 1,221,888 | 1,221,888
Change in fair value of interest rate swap |  |  |  | 41,757 | 41,757
Change in pension and other postretirement benefit costs, net of tax |  |  |  | 554,243 | 554,243
Issuance of SARS | $ 172,806 |  |  |  | 172,806
Issuance of Common Stock for directors' fees | $ 181,695 |  |  |  | 181,695
Issuance of Common Stock for directors' fees (in shares) | 7,147 |  |  |  |
Balances at Dec. 30, 2017 | $ 29,501,123 | $ (19,105,723) | $ 97,921,903 | $ (21,386,713) | $ 86,930,590
Balances (in shares) at Dec. 30, 2017 | 8,957,974 | (2,694,729) |  |  |

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