Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 9,004,000	$ 7,546,000
Investments	3,024,000	4,794,000
Accounts receivable, net	5,386,000	3,775,000
Inventories, net	3,246,000	3,615,000
Prepaid expenses and other assets	1,067,000	932,000
Prepaid income taxes	255,000	206,000
Deferred income taxes	444,000	445,000
Total current assets	22,426,000	21,313,000
Investments	453,000	1,969,000
Property, equipment and improvements, net	1,629,000	1,683,000
Software development costs, net	3,697,000	3,716,000
Purchased intangible assets, net	2,601,000	2,835,000
Total assets	30,806,000	31,516,000
Current liabilities:
Accounts payable	1,046,000	1,134,000
Accrued expenses	1,481,000	1,664,000
Deferred revenue	3,367,000	3,002,000
Fair value of foreign currency hedge contracts	15,000	0
Total current liabilities	5,909,000	5,800,000
Deferred income taxes	704,000	696,000
Total liabilities	6,613,000	6,496,000
Stockholders' equity:
Preferred stock - $.01 par value: 1,000,000 shares authorized; none issued	0	0
Common stock - $.01 par value: 50,000,000 shares authorized; 13,304,596 shares issued; 11,116,397 shares outstanding	133,000	133,000
Additional paid-in capital	17,648,000	17,591,000
Retained earnings	16,233,000	17,099,000
Accumulated other comprehensive loss	(3,000)	15,000
Treasury stock - at cost; 2,188,199 shares	(9,818,000)	(9,818,000)
Total stockholders' equity	24,193,000	25,020,000
Total liabilities and stockholders' equity	$ 30,806,000	$ 31,516,000