Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 5,614,221	$ 4,220,152
Accounts receivable, net	564,571	491,576
Inventories	5,548,083	5,343,016
Deferred income taxes	411,928	396,415
Prepaid expenses	1,179,384	807,344
Total current assets	13,318,187	11,258,503
Property and equipment, net	4,453,213	4,638,075
Goodwill, net	2,308,750	2,295,270
Intangible assets, net	52,872	55,851
Other assets	116,989	95,813
Total assets	20,250,011	18,343,512
Current liabilities:
Accounts payable, trade	2,253,920	2,110,624
Accrued liabilities	1,557,214	976,495
Current maturities of long-term obligations	175,159	168,522
Deferred revenue	3,573,178	2,489,828
Total current liabilities	7,559,471	5,745,469
Long-term obligations, less current maturities	1,638,285	1,727,555
Deferred income taxes	997,566	994,909
Shareholders' equity:
Common stock, $0.001 par value; 50,000,000 shares authorized; 22,228,834 shares issued and outstanding at June 30, 2011 and December 31, 2010	22,229	22,229
Additional paid-in capital	13,627,537	13,605,922
Accumulated deficit	(3,720,984)	(3,881,348)
Accumulated other comprehensive income	125,907	128,776
Total shareholders' equity	10,054,689	9,875,579
Total liabilities and shareholders' equity	$ 20,250,011	$ 18,343,512