| Consolidated Statements of Operations [Abstract] | |
| Net revenues | 24.65M |
| Costs and expenses: | |
| Cost of sales | 20.48M |
| Other operating costs and expenses | 253K |
| Selling, general and administrative expenses | 1.93M |
| Total costs and expenses | 22.66M |
| Operating income | 1.99M |
| Interest income, net | 132K |
| Realized gain on sale of marketable security | 0 |
| Income before income taxes | 2.12M |
| Provision for income taxes | 430K |
| Net income | 1.69M |
| Net income per share: | |
| Basic | 0.06 |
| Diluted | 0.06 |
| Weighted average shares outstanding: | |
| Basic | 27.13M |
| Diluted | 27.13M |