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CONDENSED STATEMENTS OF CASH FLOWS (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Cash flows from operating activities |  |
Net loss | $ (2,038,392) | $ (1,409,533)
Adjustments to reconcile net loss to net cash provided by (used by) operating activities: |  |
Depreciation and amortization | 326,482 | 314,179
loss on disposal of assets |  | (1,000)
(Increase) decrease in assets: |  |
Inventories | 331,314 | (201,770)
Accounts receivable | 301,994 | 536,846
Other current assets | 461,559 | 483,634
Increase (decrease) in liabilities: |  |
Accounts payable | (1,262,123) | (1,836,871)
Other accrued liabilities | (693,437) | (17,770)
Income taxes payable | (86,165) | 1,876
Net cash used by operating activities | (2,658,768) | (2,130,409)
Cash flows from investing activities |  |
Purchase of property, plant, and equipment | (738,597) | (63,890)
Proceeds from sale of assets |  | 1,000
Net cash used by investing activities | (738,597) | (62,890)
Cash flows from financing activities |  |
Repayments of long-term debt and notes payable | (82,214) | (77,657)
Repurchase of Common Stock |  | (101,672)
Proceeds from the exercise of stock options | 106,289 |
Payment of Preferred Stock dividends | (57,613) | (57,613)
Net cash used by financing activities | (33,538) | (236,942)
Net decrease in cash and cash equivalents | (3,430,903) | (2,430,241)
Cash and cash equivalents at: |  |
Beginning of period | 27,629,359 | 25,963,313
End of period | 24,198,456 | 23,533,072
Supplemental schedule of cash flow information: |  |
Interest paid | 57,168 | 62,537
Income taxes paid | 87,995 |
Supplemental schedule of noncash investing and financing activities: |  |
Preferred dividends declared, not paid | $ 57,613 | $ 57,613

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