Consolidated Balance Sheets (USD $)	Dec. 31, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 3,858,544	$ 4,220,152
Accounts receivable, net of allowance for doubtful accounts of $29,361 and $30,357, respectively	585,593	491,576
Inventories	6,448,934	5,343,016
Deferred income taxes	460,868	396,415
Prepaid expenses and other current assets	623,288	807,344
Total current assets	11,977,227	11,258,503
Property and equipment, net of accumulated depreciation	4,486,771	4,638,075
Goodwill, net of accumulated amortization	2,286,859	2,295,270
Other intangible assets, net of accumulated amortization	49,894	55,851
Other assets	24,995	95,813
Total assets	18,825,746	18,343,512
Current liabilities
Accounts payable, trade	2,170,690	2,110,624
Accrued liabilities	1,065,840	976,495
Current maturities of long-term debt	182,056	168,522
Deferred revenue	2,990,333	2,489,828
Total current liabilities	6,408,919	5,745,469
Long-term obligations, less current maturities	1,545,499	1,727,555
Deferred income taxes	1,007,977	994,909
Shareholders' equity
Common stock, $0.001 par value; authorized 50,000,000 shares; 22,228,834 shares issued and outstanding in 2011 and 2010	22,229	22,229
Additional paid-in capital	13,650,414	13,605,922
Accumulated deficit	(3,952,842)	(3,881,348)
Accumulated other comprehensive income	143,550	128,776
Total shareholders' equity	9,863,351	9,875,579
Total liabilities and shareholders' equity	$ 18,825,746	$ 18,343,512