Condensed Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash	$ 3,568,158	$ 3,421,679
Trade receivables, less allowance for doubtful accounts of approximately $76,000 and $79,000 at March 31, 2014 and December 31, 2013 respectively	1,753,182	1,943,643
Inventories, net	2,830,458	2,740,835
Prepaid expenses	431,929	311,144
Income tax deposit	116,659	106,859
Deferred income taxes - current	307,938	307,938
Total current assets	9,008,324	8,832,098
Property and equipment, net	371,163	390,755
Other assets	292,945	273,699
Total assets	9,672,432	9,496,552
Current liabilities:
Accounts payable	782,267	689,014
Accrued compensation expenses	375,032	290,589
Income taxes payable	3,250	0
Other current liabilities	82,495	71,729
Total current liabilities	1,243,044	1,051,332
Deferred tax liability	84,438	84,438
Total liabilities	1,327,482	1,135,770
Commitments and contingencies
Shareholders' equity:
Common stock, $0.001 par value; 20,000,000 shares authorized; 10,114,311 and 10,104,311 shares issued and outstanding, at March 31, 2014 and December 31, 2013, respectively	10,114	10,104
Additional paid-in capital	3,109,556	3,031,056
Retained earnings	5,225,280	5,319,622
Total shareholders' equity	8,344,950	8,360,782
Total liabilities and shareholders' equity	$ 9,672,432	$ 9,496,552