|
Note 3 - Summary of Significant Accounting Policies (Detail) (USD $)
|
12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 3 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Mar. 31, 2013
|
Mar. 31, 2013
Restricted Stock [Member]
Minimum [Member]
|
Mar. 31, 2013
Restricted Stock [Member]
Maximum [Member]
|
Mar. 31, 2013
Restricted Stock [Member]
|
Dec. 31, 2012
Deferred Stock Unit Awards [Member]
Minimum [Member]
|
Dec. 31, 2012
Deferred Stock Unit Awards [Member]
Maximum [Member]
|
Dec. 31, 2012
Stock Options [Member]
Maximum [Member]
|
Mar. 31, 2013
Equipment and Software [Member]
Minimum [Member]
|
Mar. 31, 2013
Equipment and Software [Member]
Maximum [Member]
|
Mar. 31, 2013
Overdraft Amount Reclassed To Accounts Payable [Member]
|
Mar. 31, 2013
Web Site Development Costs [Member]
|
|
| Deferred Revenue, Current (in Dollars) | $ 4,381,000 | $ 2,850,000 | ||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 months | 1 year | 1 year | 1 year | 3 years | 4 years | ||||||
| Stock Option Awards, Max Term | 10 years | |||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares) | 1,153,103 | |||||||||||
| Accounts Payable (in Dollars) | 26,000 | |||||||||||
| Restricted Cash and Cash Equivalents (in Dollars) | $ 4,635,000 | |||||||||||
| Property, Plant and Equipment, Useful Life | 2 years | 5 years | ||||||||||
| Finite-Lived Intangible Asset, Useful Life | 36 months | |||||||||||