Note 1 - Summary of Significant Accounting Policies (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue Recognition, Subscription Period	12 months
Capitalized Computer Software, Additions (in Dollars)	$ 636,000	$ 840,000	$ 900,000
Income Tax Credits and Adjustments (in Dollars)	289,000	229,000	251,000
Unrecognized Tax Benefits (in Dollars)	224,000	266,000	269,000
Unrecognized Tax Benefits, Interest on Income Taxes Expense (in Dollars)	11,000	43,000
Cash Equivalents, at Carrying Value (in Dollars)	7,500,000	7,900,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	30,820	119,569	384,652
Number of Operating Segments	8
Number of Reportable Segments	1
Recognized Favorable Impact [Member]
Unrecognized Tax Benefits (in Dollars)	$ 224,000	$ 266,000
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Estimated Useful Lives	three
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Estimated Useful Lives	ten
Computer Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Estimated Useful Lives	three
Computer Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Estimated Useful Lives	five
Other Capitalized Property Plant and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Estimated Useful Lives	three
Other Capitalized Property Plant and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Estimated Useful Lives	five
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Estimated Useful Lives	seven
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Estimated Useful Lives	forty
Minimum [Member]
Marketing Arrangement Term	1 year
License Term	1 year
Maximum [Member]
Marketing Arrangement Term	3 years
License Term	3 years
Revenue [Member]
Concentration Risk, Percentage	22.00%	20.00%	19.00%