Share Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended						3 Months Ended						9 Months Ended		3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Stock Options [Member]	Sep. 30, 2012 Restricted Stock [Member]	Sep. 30, 2012 Director [Member]	Sep. 30, 2011 Director [Member]	Mar. 31, 2012 President [Member]	Mar. 31, 2011 Chief Executive Officer [Member]	Sep. 30, 2012 Executive Officers [Member]	Mar. 31, 2011 Executive Officers [Member]	Sep. 30, 2012 Non-Employee Directors [Member]	Sep. 30, 2011 Non-Employee Directors [Member]	Sep. 30, 2012 Non-Employee Directors [Member]	Sep. 30, 2011 Non-Employee Directors [Member]	Sep. 30, 2012 Officer [Member]
Salary Stock Arrangement with Individual, Share-based Payments [Line Items]
Number of additional shares approved for grant (in shares)			200,000												300,000
Annual salary increase									$ 30,000	$ 200,000
Restricted stock units issued to executives (in shares)											220,000	140,000
Number of executive issued restricted stock											6	5
Award vesting period, minimum											3 years	2 years					3 years
Shares granted, expiry period	10 years
Stock options issued to officers (in shares)																	100,000
Shares issues as retainer fees (in shares)							170,000	80,000
Total compensation expense (recovery) recognized	200,000	300,000	300,000	700,000
Non-employee directors share-based compensation expenses													100,000	100,000	300,000	200,000
Total compensation cost not yet recognized	1,400,000		1,400,000
Total compensation cost not yet recognized, period for recognition			2 years 9 months 18 days
Outstanding stock option grants and transaction [Roll Forward]
Outstanding, beginning balance (in shares)					180,862
Granted (in shares)					113,400
Exercised (in shares)					(1,401)
Forfeited (in shares)					(11,666)
Expired (in shares)					(5,495)
Outstanding, ending balance (in shares)					275,700
Vested and expected to vest, period end (in shares)					253,972
Exercisable, period end (in shares)					77,881
Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning balance (in dollars per share)					$ 7.98
Granted (in dollars per share)					$ 2.70
Exercised (in dollars per share)					$ 1.92
Forfeited (in dollars per share)					$ 1.92
Expired (in dollars per share)					$ 90.66
Outstanding, ending balance (in dollars per share)					$ 4.45
Vested and expected to vest, period end (in dollars per share)					$ 4.62
Exercisable, period end (in dollars per share)					$ 9.73
Weighted-Average Remaining Contractual Term [Abstract]
Outstanding, Weighted Average Remaining Contractual Term					8 years 8 months 1 day
Vested and Expected to Vest, Weighted-Average Remaining Contractual Term					8 years 7 months 6 days
Exercisable, Weighted Average Remaining Contractual Term					7 years 14 days
Aggregate intrinsic value [Abstract]
Outstanding, Intrinsic Value					100,000
Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value					94,000
Exercisable, Aggregate Intrinsic Value					32,000
Non-vested restricted stock and stock units and transactions [Roll Forward]
Outstanding, beginning balance (in shares)						165,045
Granted (in shares)						221,147
Vested (in shares)						(4,496)
Forfeited (in shares)						(522)
Outstanding, ending balance (in shares)						381,174
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding, beginning balance (in dollars per share)						$ 17.90
Granted (in dollars per share)						$ 2.78
Vested (in dollars per share)						$ 166.90
Forfeited (in dollars per share)						$ 93.14
Outstanding, ending balance (in dollars per share)						$ 7.27
Weighted-average assumptions used [Abstract]
Expected dividend yield (in hundredths)			0.74%
Risk-free interest rate (in hundredths)			0.88%
Expected life			6 years
Expected volatility (in hundredths)			100.00%
Per share weighted-average fair value (in dollars per share)	$ 2.02		$ 2.02
Information regarding options exercised [Abstract]
Intrinsic value	1,000	0	1,000	0
Cash proceeds received	3,000	0	3,000	0
Tax benefit realized	$ 0	$ 0	$ 0	$ 0