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STATEMENTS OF CASH FLOWS (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Cash flows from operating activities:      
Net income (loss) $ (4,132,892) $ 1,418,482 $ 2,400,694
Adjustments to reconcile net income (loss) to net cash provided by (used by) operating activities:      
Depreciation and amortization 1,335,858 1,311,746 1,516,226
Litigation settlement - marketing fees payable     (1,419,760)
Stock option compensation     1,340,300
Provision for inventory valuation 120,000 52,835  
Reserve for non-contractual deductions     850,000
Provision for doubtful accounts 107,246 1,298,044 133,990
Impairment of assets     365,295
Accreted interest 3,773 17,610 30,920
(Increase) decrease in assets:      
Inventories 1,127,166 2,391,937 (1,774,822)
Accounts receivable (66,867) 1,305,379 2,650,567
Income taxes receivable 30,054 (27,454) 3,643,606
Other current assets (565,231) 462,715 (56,851)
Increase (decrease) in liabilities:      
Accounts payable 1,441,308 1,054,563 (4,417,753)
Accrued liabilities, other 787,393 (3,646,555) 3,313,260
Income taxes payable (29,471) (125,529) 155,000
Net cash provided by operating activities 158,337 5,513,773 8,730,672
Cash flows from investing activities:      
Purchase of property, plant, and equipment (510,117) (826,091) (169,415)
Net cash used by investing activities (510,117) (826,091) (169,415)
Cash flows from financing activities:      
Repayments of long-term debt and notes payable (626,219) (612,927) (2,660,336)
Repurchase of Preferred Stock (1,357,275) (1,357,275)  
Proceeds from the exercise of stock options 1,620,701 54,369 115,600
Repurchase of Common Stock (122,202)    
Payment of Preferred Stock dividends (230,450) (364,625) (876,566)
Net cash provided (used) by financing activities 641,830 (2,280,458) (3,421,302)
Net increase in cash and cash equivalents 290,050 2,407,224 5,139,955
Cash and cash equivalents at:      
Beginning of period 25,673,263 23,266,039 18,126,084
End of period 25,963,313 25,673,263 23,266,039
Supplemental schedule of cash flow information:      
Interest paid 264,033 279,691 321,610
Income taxes paid 3,474 188,754 16,000
Supplemental schedule of noncash investing and financing activities:      
Preferred dividends declared, not paid 57,613    
Debt assumed for the purchase of molding machines   $ 534,986