Statements Of Operations (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statements Of Operations [Abstract]
Services revenues	$ 6,967,000	$ 3,468,000
Products revenues	429,000	529,000
Total Net Sales	7,396,000	3,997,000
Cost of services	3,571,000	2,687,000
Cost of goods sold	289,000	410,000
Total Cost of Sales	3,860,000	3,097,000
Gross Profit	3,536,000	900,000
Operating Expenses:
Selling	1,395,000	1,646,000
Marketing	209,000	434,000
General and administrative	956,000	1,074,000
Total Operating Expenses	2,560,000	3,154,000
Operating Income (Loss)	976,000	(2,254,000)
Other income	7,000	7,000
Income (Loss) Before Taxes	983,000	(2,247,000)
Income tax (expense) benefit	(563,000)	670,000
Net Income (Loss)	$ 420,000	$ (1,577,000)
Net income (loss) per share:
Basic	$ 0.03	$ (0.12)
Diluted	$ 0.03	$ (0.12)
Shares used in calculation of net income (loss) per share:
Basic	13,654,000	13,611,000
Diluted	13,684,000	13,611,000