|
Note 7 - Share-based Compensation (Details) (USD $)
|
12 Months Ended |
1 Months Ended |
6 Months Ended |
|
|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Jun. 30, 2014
|
Jun. 30, 2014
|
Sep. 30, 2014
|
Jun. 03, 2010
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value (in Dollars) |
$ 6,290,000 |
$ 4,730,000 |
$ 2,930,000 |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
6,000 |
|
2,655 |
|
|
|
|
| Share Price (in Dollars per share) |
$ 1.90 |
|
|
|
|
|
|
| Value Shares Withheld Restricted Share Unit Percentage |
25.00% |
|
|
|
|
|
|
| Shares for Tax Withholding for Restricted Share Unit Plan |
|
|
10,846 |
|
|
|
|
| Employee Stock Option [Member] | Begin to Vest [Member] | Options Granted Prior to January 2010 [Member] | Stock Option Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |
1 year |
|
|
|
|
|
|
| Employee Stock Option [Member] | Options Granted Prior to January 2010 [Member] | Stock Option Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |
4 years |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |
8 years |
|
|
|
|
|
|
| Employee Stock Option [Member] | Options Granted After January 2010 [Member] | Stock Option Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |
36 months |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |
8 years |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |
25.00% |
|
|
|
|
|
|
| Employee Stock Option [Member] | Stock Option Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Maximum Fixed Reloading Percentage |
10.00% |
|
|
|
|
|
|
| Common Stock, Capital Shares Reserved for Future Issuance |
9,160,135 |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
1,825,858 |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
|
0 |
|
|
|
|
|
| Employee Stock Option [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share Based Compensation Arrangement by Share Based Payment Award Options in the Money Exercisable Number |
535,188 |
|
|
|
|
|
|
| Allocated Share-based Compensation Expense (in Dollars) |
1,700,000 |
1,700,000 |
1,400,000 |
|
|
|
|
| Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) |
3,300,000 |
|
|
|
|
|
|
| Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition |
35 months |
|
|
|
|
|
|
| Restricted Stock Units (RSUs) [Member] | Maximum [Member] | Restricted Share Unit Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |
5 years |
|
|
|
|
|
|
| Restricted Stock Units (RSUs) [Member] | Restricted Share Unit Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
|
|
|
|
|
530,910 |
|
| Allocated Share-based Compensation Expense (in Dollars) |
400,000 |
(200,000) |
500,000 |
|
|
|
|
| Restricted Stock Unit, Shares Issued Per Unit Upon Conversion |
1 |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized |
500,000 |
|
|
500,000 |
|
|
|
| Restricted Share Units Maximum Shares Reserved |
966,666 |
|
|
|
|
|
|
| Value Shares Withheld Restricted Share Unit Percentage |
|
|
|
|
25.00% |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period |
110,104 |
46,906 |
43,397 |
|
|
|
|
| Restricted Stock Units (RSUs) [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period |
110,104 |
46,906 |
43,397 |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value (in Dollars per share) |
|
$ 1.84 |
$ 3.55 |
|
|
|
|
| Shares for Tax Withholding for Restricted Share Unit Plan |
|
11,730 |
|
|
|
|
|
| Restricted Share Unit Plan [Member] | Non-Employee Director Restricted Share Units [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Cash Paid for Tax Withholding for Share Based Compensation (in Dollars) |
95,653 |
21,636 |
38,544 |
|
|
|
|
| Restricted Share Unit Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value (in Dollars per share) |
$ 3.47 |
|
|
|
|
|
|
| Shares for Tax Withholding for Restricted Share Unit Plan |
27,528 |
|
|
|
|
|
|
| Employee Stock Purchase Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
600,533 |
|
|
|
|
|
|
| Allocated Share-based Compensation Expense (in Dollars) |
101,796 |
149,674 |
184,960 |
|
|
|
|
| Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) |
25,559 |
|
|
|
|
|
|
| Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition |
255 days |
|
|
|
|
|
|
| Price 1 [Member] | Employee Stock Purchase Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, Employee Stock Purchase Plans |
|
38,934 |
49,086 |
|
|
|
|
| Employee Stock Purchase Plan Purchase Price (in Dollars) |
|
1.46 |
3.33 |
|
|
|
|
| Price 2 [Member] | Employee Stock Purchase Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, Employee Stock Purchase Plans |
|
35,895 |
6,338 |
|
|
|
|
| Employee Stock Purchase Plan Purchase Price (in Dollars) |
|
1.57 |
2.82 |
|
|
|
|
| Employee Stock Purchase Plan [Member] |
|
|
|
|
|
|
|
| Note 7 - Share-based Compensation (Details) [Line Items] |
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars) |
0 |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |
900,000 |
|
|
|
|
|
900,000 |
| Employee Stock Purchase Plan Interval Period |
6 years |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate |
15.00% |
|
|
|
|
|
|
| Employee Stock Purchase Plan Maximum Value Of Compensation Per Employee (in Dollars) |
25,000 |
|
|
|
|
|
|
| Employee Stock Purchase Plan Purchase Of Common Stock Percentage |
85.00% |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee |
15,000 |
|
|
|
|
|
|
| Stock Issued During Period, Shares, Employee Stock Purchase Plans |
76,811 |
|
|
|
|
|
|
| Employee Stock Purchase Plan Purchase Price (in Dollars) |
$ 1.49 |
|
|
|
|
|
|