Note 5 - Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares |
3 Months Ended | 12 Months Ended |
|---|---|---|
Apr. 03, 2016 |
Jan. 03, 2016 |
|
| Balance, outstanding options (in shares) | 479,564 | |
| Balance, outstanding weighted average stock price (in dollars per share) | $ 1.88 | |
| Balance, outstanding weighted average remaining contractual term | 1 year 332 days | 1 year 186 days |
| RSU forfeited (in shares) | (11,111) | |
| RSU forfeited (in dollars per share) | $ 1.80 | |
| RSU vested and issued in shares (in shares) | (25,125) | |
| RSU vested and issued in shares (in dollars per share) | $ 1.99 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 595,339 | |
| RSU granted (in dollars per share) | $ 1.33 | |
| Balance, outstanding options (in shares) | 1,038,669 | 479,564 |
| Balance, outstanding weighted average stock price (in dollars per share) | $ 1.56 | $ 1.88 |
| X | ||||||||||
- Definition Weighted average per share amount of restricted stock units converted into common stock. No definition available.
|
| X | ||||||||||
- Definition The weighted average stock price under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. No definition available.
|
| X | ||||||||||
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|