No authoritative reference available.

No definition available.

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Class Of Warrant Or Right, Term.

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Fair value of options exercised during the period.

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No definition available.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Exercise price per share or per unit of warrants or rights outstanding.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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-Subparagraph (a)

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The cash inflow associated with the amount received from holders exercising their stock warrants.

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No definition available.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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).

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The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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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.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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Number of share options (or share units) exercised during the current period.

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-Name Regulation S-X (SX)

-Number 210

-Section 04

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-Section 02

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Shareholders' Equity (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended
Shareholders' Equity (Narrative) (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock reserved for issuance			750,000
Awards available for issuance			611,692
Proceeds from exercise of options			$ 822,969
Proceeds from exercise of warrants			472,819		26,233
Stock and option compensation	1,841,000	424,000	2,545,060	873,888	719,811
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options exercised			179,983		60,382
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common stock granted			282,900	363,200
Market value per share on the date of grant			$ 3.70	$ 3.38
Unvested shares			611,692	218,733	90,667
Unamortized compensation costs			758,000
Unamortized compensation costs, period for recognition			24 months
Restricted Stock [Member] \| Vesting Ratably [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			36 months	36 months	36 months
Restricted common stock granted			188,000	261,600	136,000
Restricted Stock [Member] \| Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common stock granted			91,500	96,500	63,000
Market value per share on the date of grant					$ 5.20
Restricted Stock [Member] \| Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common stock granted					139,000
Market value per share on the date of grant					$ 5.20
Restricted Stock [Member] \| Employees [Member] \| Vesting Immediately [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common stock granted			3,400	5,100	3,000
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted			499,700
Options granted, weighted-average exercise price per share			$ 5.26
Number of options exercised			72,500		85,000
Proceeds from exercise of options			322,475
Option expiration period			10 years
Stock and option compensation			1,431,620
Employee Stock Option [Member] \| Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair market value of options exercised					276,750
Number of options exercised					75,000
Number of options forfeited					29,270
Proceeds from exercise of options					39,744
Non-Employee Stock Options and Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted				807,846
Options granted, weighted-average exercise price per share				$ 5.12
Number of options exercised			107,483		4,652
Number exercisable			1,365,870
Weighted-average exercise price per share, exercisable			$ 5.60
Stock and option compensation			$ 174,320	$ 4,690	$ (16,974)
Non-Employee Stock Options and Warrants [Member] \| Consultant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				24 months
Number of options granted				60,000
Options granted, weighted-average exercise price per share				$ 3.95
Minimum [Member] \| Non-Employee Stock Options and Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option expiration period			5 years
Maximum [Member] \| Non-Employee Stock Options and Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option expiration period			10 years
July and August Investor Warrants [Member]
Class of Warrant or Right [Line Items]
Term of warrants			5 years
Exercise price of warrants			4.45
Exercise price of warrants, as a percentage of offering price			150.00%
October Investor Warrants [Member]
Class of Warrant or Right [Line Items]
Term of warrants			5 years
Exercise price of warrants			6.73
Exercise price of warrants, as a percentage of offering price			150.00%