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CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Current assets:    
Cash and cash equivalents $ 3,762 $ 4,162
Trade accounts receivable, net 1,926 2,874
Inventories, net 8,537 7,984
Prepaid expenses and other current assets 1,118 951
Total current assets 15,343 15,971
Property and equipment, net 7,172 7,229
Brand name and trademark 1,510 1,510
Purchased technology, net 642 664
License rights, net 0 0
Deferred income tax assets, net 2,148 1,799
Other assets 1,263 1,010
Total assets 28,078 28,183
Current liabilities:    
Accounts payable 885 803
Accrued payroll 101 118
Accrued vacation 208 186
Current portion of mortgage note payable to bank 140 138
Current portion of settlement 163 232
Accrued and other liabilities 663 445
Total current liabilities 2,160 1,922
Bonds payable, net of current portion 3,245 3,281
Derivative liabilities 119 85
Total liabilities 5,524 5,288
Commitments and Contingencies (see Note 10)      
Stockholders' equity:    
Preferred stock, par value $.001; 10,000,000 shares authorized; none issued or outstanding      
Common stock, par value $.001 par value; 40,000,000 shares authorized; 17,809,677 and 17,781,538 issued and 17,666,598 and 17,638,459 outstanding on March 31, 2013 and December 31, 2012, respectively 18 18
Additional paid-in capital 25,585 25,517
Deficit (3,049) (2,640)
Total stockholders' equity 22,554 22,895
Total liabilities and stockholders' equity $ 28,078 $ 28,183