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Shareholders' Equity (Details Textual) (USD $) | 12 Months Ended
--- | ---
Jan. 31, 2013 | Jan. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
RSAs awarded | 96,900 |
Shares of restricted stock granted to Executive Vice President Mr. Woods | 144,000 |
Unrecognized compensation expense | $ 492,000 |
Shareholders' Equity (Textual) [Abstract] |  |
Common stock repurchased, shares | 110,000 | 0
Common stock shares repurchased, value | 770,000 |
Common stock shares additional authorized | 390,000 |
Company shares given to employees, Shares | 2,979 | 139,895
Company shares given to employees, Value | 176,000 | 1,038,000
Options granted weighted average fair value per share | $ 2.02 | $ 2.02
Aggregate intrinsic value of options exercised | 241,000 | 1,320,000
Employee purchase plan discount rate | 15.00% |
Executive Vice President [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
RSAs awarded | 50,000 |
Shares of restricted stock granted to Executive Vice President Mr. Woods | 50,000 |
Non-employee director [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of shares granted to non director employee directors | 20,000 | 20,000
Non-employee director is entitled to an annual cash retainer | 7,000 |
Non-employee director is entitled to an annual cash retainer additional | 500 |
Non-employee director received restricted stock award value | 20,000 |
Equity retainer vested, period | 12 months |
Equity incentive plan [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Option granted to employee vested over years | 4 years |
Aggregate shares authorized for awards under the Plan | 1,000,000 |
Shares available for grant under the Plan | 467,594 |
Plan provides for an automatic annual grant | 10 years |
Number of shares granted to non director employee directors | 5,000 |
Stock Option [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Unrecognized compensation expense related to unvested options | 287,000 |
Expenses to be recognized over a weighted average period | 2 years |
Aggregate intrinsic value of option exercised | 1,188,000 |
Aggregate intrinsic value of the options outstanding | 1,624,000 |
Weighted average remaining contractual terms for these options that are exercisable | 3 years 2 months 12 days |
Weighted average remaining contractual terms for these options outstanding | 4 years 4 months 24 days |
First anniversary [Member] | Restricted Stock Units (RSUs) [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Restricted stock unit vested percentage | 50.00% |
Second anniversary [Member] | Restricted Stock Units (RSUs) [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Restricted stock unit vested percentage | 50.00% |
Employee Stock Purchase Plan [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Reservation of shares under stock purchase plan | 247,500 |
Compensation expense | $ 100,000 | $ 100,000

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- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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