Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Consolidated Statements of Operations
Total revenues	$ 17,030	$ 16,304
Cost of revenues	10,304	10,040
Gross profit	6,726	6,264
Operating expenses:
Selling, general and administrative	5,105	4,901
Research and development	784	633
Amortization of intangible assets	161	161
Change in fair value of contingent consideration	7	(334)
Total operating expenses	6,057	5,361
Operating income	669	903
Non-operating income (expense):
Other income (expense), net	(3)	5
Interest income (expense), net	(4)	(5)
Income from continuing operations before income taxes	662	903
Provision for income taxes	(232)	(314)
Income from continuing operations	430	589
Gain on sale of discontinued operation, net of tax	30	87
Net income	$ 460	$ 676
Income per share from continuing operations - basic and diluted (in dollars per share)	$ 0.01	$ 0.02
Gain per share from sale of discontinued operation - basic and diluted (in dollars per share)	$ 0.00	$ 0.00
Net income per share - basic and diluted (in dollars per share)	$ 0.01	$ 0.02
Shares used in basic per share calculations (in shares)	32,520	33,809
Shares used in diluted per share calculations (in shares)	32,716	33,863