This element represents the amount of recognized equity-based compensation related to stock warrants to outside directors vested during the period. that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized).

No definition available.

Shareholders' Equity (Details) (USD $)	3 Months Ended	6 Months Ended	9 Months Ended
Shareholders' Equity (Details) (USD $)	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2012
Class of Stock [Line Items]
Shares issued of common stock (in shares)			66,070
Changes in common stock [Roll Forward]
Balance		$ 126,781,000	$ 126,781,000
Balance	123,718,000		123,718,000
Weighted Average Exercise Price [Roll Forward]
Granted (in dollars per share)	$ 2.32
Employee Stock Options [Member]
Changes in common stock [Roll Forward]
Exercise of options (in shares)			4,167
Options [Roll Forward]
Outstanding beginning balance (in shares)		2,318,399	2,318,399
Granted (in shares)			150,000
Forfeited (in shares)			0
Expired (in shares)			(105,000)
Exercised (in shares)			(4,167)
Outstanding ending balance (in shares)	2,359,232		2,359,232
Exercisable (in shares)	2,209,232		2,209,232
Weighted Average Exercise Price [Roll Forward]
Beginning Balance (in dollars per share)		$ 3.94	$ 3.94
Granted (in dollars per share)			$ 2.32
Forfeited (in dollars per share)			$ 0
Expired (in dollar per share)			$ 4.39
Exercised (in dollars per share)			$ 2.52
Ending Balance (in dollars per share)	$ 3.82		$ 3.82
Exercisable (in dollars per share)	$ 3.92		$ 3.92
Weighted Average Remaining Contractual Life - Years			4 years 7 months 17 days
Aggregate intrinsic value of options / warrants outstanding	0		0
Term of plan			3 years
Term of expiry of plan			10 years
Risk free interest rate (in hundredths)			0.815%
Expected life			6 years
Expiration date of plan			Dec. 06, 2011
Expected volatility rate (in hundredths)			61.87%
Compensation expense	15,000		17,000
Unrecognized compensation expense	181,000		181,000
Director Stock Options [Member]
Changes in common stock [Roll Forward]
Exercise of options (in shares)			20,000
Options [Roll Forward]
Outstanding beginning balance (in shares)		210,000	210,000
Granted (in shares)	10,000	70,000	80,000
Forfeited (in shares)			0
Expired (in shares)			(120,000)
Exercised (in shares)			(20,000)
Outstanding ending balance (in shares)	150,000		150,000
Exercisable (in shares)	63,335		63,335
Weighted Average Exercise Price [Roll Forward]
Beginning Balance (in dollars per share)		$ 3.10	$ 3.10
Granted (in dollars per share)		$ 2.85	$ 2.78
Forfeited (in dollars per share)			$ 0
Expired (in dollar per share)			$ 3.05
Exercised (in dollars per share)			$ 2.52
Ending Balance (in dollars per share)	$ 3.05		$ 3.05
Exercisable (in dollars per share)	$ 3.01		$ 3.01
Weighted Average Remaining Contractual Life - Years			8 years 4 months 6 days
Aggregate intrinsic value of options / warrants outstanding	0		0
Term of plan			3 years
Risk free interest rate, minimum (in hundredths)			1.13%
Risk free interest rate, maximum (in hundredths)			1.41%
Expected life			6 years
Expected volatility rate, minimum (in hundredths)			62.75%
Expected volatility rate, maximum (in hundredths)			63.59%
Compensation expense	16,000		53,000
Unrecognized compensation expense	128,000		128,000
Options vested over period (in shares)			60,000
Director Stock Options [Member] \| Options vesting immediately [Member]
Weighted Average Exercise Price [Roll Forward]
Term of expiry of plan			10 years
Maximum period allowed for expiry of options for board members no longer serving the board			1 year
Options vested immediately (in shares)			10,000
Director Stock Options [Member] \| Options vesting over a three year period [Member]
Weighted Average Exercise Price [Roll Forward]
Term of expiry of plan			10 years
Maximum period allowed for expiry of options for board members no longer serving the board			1 year
Director Stock Options [Member] \| Minimum [Member]
Weighted Average Exercise Price [Roll Forward]
Expected life			5 years
Director Stock Options [Member] \| Maximum [Member]
Weighted Average Exercise Price [Roll Forward]
Expected life			6 years
Common Stock [Member]
Changes in common stock [Roll Forward]
Balance		274,000	274,000
Balance (in shares)		27,409,908	27,409,908
2001 stock compensation plan			1,000
2001 stock compensation plan (in shares)			45,000
Expense of employee options vesting			0
Expense of outside director warrants vesting			0
Balance	275,000		275,000
Balance (in shares)	27,475,978		27,475,978
Common Stock [Member] \| Employee Stock Options [Member]
Changes in common stock [Roll Forward]
Exercise of options			0
Exercise of options (in shares)			1,070
Options [Roll Forward]
Exercised (in shares)			(1,070)
Common Stock [Member] \| Director Stock Options [Member]
Changes in common stock [Roll Forward]
Exercise of options			0
Exercise of options (in shares)			20,000
Options [Roll Forward]
Exercised (in shares)			(20,000)
Additional Paid-In Capital [Member]
Changes in common stock [Roll Forward]
Balance		122,523,000	122,523,000
2001 stock compensation plan			130,000
Expense of employee options vesting			16,000
Expense of outside director warrants vesting			53,000
Balance	122,772,000		122,772,000
Additional Paid-In Capital [Member] \| Employee Stock Options [Member]
Changes in common stock [Roll Forward]
Exercise of options			0
Additional Paid-In Capital [Member] \| Director Stock Options [Member]
Changes in common stock [Roll Forward]
Exercise of options			$ 50,000