| Condensed Consolidated Statements of Earning (Loss)[Abstract] | |
| Net Sales | 31.72M |
| Costs and expenses | |
| Costs of goods sold | 28.84M |
| General, selling and administrative costs | 1.18M |
| Total costs and expenses | 30.02M |
| Interest and other income | -15.53K |
| Earnings before income taxes | 1.72M |
| Income tax provision (benefit): | |
| Current | 587.17K |
| Deferred | -20.93K |
| Total income tax provision (benefit) | 566.24K |
| Net earnings | 1.15M |
| Average number of common shares outstanding: | |
| Basic | 6.8M |
| Diluted | 6.8M |
| Net earnings per share: | |
| Basic | 0.17 |
| Diluted | 0.17 |
| Cash dividends declared per common share | 0.63 |