Share Based Compensation (Details) (USD $)	3 Months Ended								12 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Performance-based compensation plan [Member]	Mar. 31, 2013 Performance-based compensation plan [Member]	Mar. 31, 2014 Stock Options [Member]	Mar. 31, 2014 Non-Vested Restricted Stock, Restricted Stock Units and PSU's [Member]	Mar. 31, 2014 Director [Member]	Mar. 31, 2013 Director [Member]	Dec. 31, 2013 Chief Executive Officer [Member]	Mar. 31, 2014 Non-Employee Directors [Member]	Mar. 31, 2013 Non-Employee Directors [Member]	Mar. 31, 2014 Officers [Member] Restricted Stock [Member] Performance-based compensation plan [Member]	Mar. 31, 2014 Officers [Member] Performance stock units [Member] Performance-based compensation plan [Member]
Share based compensation arrangements [Line Items]
Number of additional shares approved for grant (in shares)	400,000									200,000
Number of stock units or restricted shares issued in period (in shares)				0								70,000	30,000
Vesting period												3 years	3 years
Shares issues as retainer fees (in shares)							4,000	24,000
Annual salary									$ 20,000
Total compensation expense (recovery) recognized			200,000	100,000						50,000	90,000
Tax benefit relating to compensation expense recognized			100,000	0						20,000	0
Total compensation cost not yet recognized	2,300,000
Total compensation cost not yet recognized, period for recognition	2 years 4 months 24 days
Outstanding stock option grants and transaction [Roll Forward]
Outstanding, beginning balance (in shares)					320,300
Granted (in shares)					0
Exercised (in shares)					(1,935)
Forfeited (in shares)					(2,401)
Expired (in shares)					(284)
Outstanding, ending balance (in shares)					315,680
Vested and expected to vest, period end (in shares)					303,702
Exercisable, period end (in shares)					131,297
Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning balance (in dollars per share)					$ 4.52
Exercised (in dollars per share)					$ 5.25
Forfeited (in dollars per share)					$ 4.12
Expired (in dollars per share)					$ 3.46
Outstanding, ending balance (in dollars per share)					$ 4.52
Vested and expected to vest, period end (in dollars per share)					$ 4.52
Exercisable, period end (in dollars per share)					$ 5.13
Weighted-Average Remaining Contractual Term [Abstract]
Outstanding, Weighted Average Remaining Contractual Term					7 years 10 months 2 days
Vested and Expected to Vest, Weighted-Average Remaining Contractual Term					7 years 9 months 18 days
Exercisable, Weighted Average Remaining Contractual Term					6 years 10 months 28 days
Aggregate intrinsic value [Abstract]
Outstanding, Intrinsic Value					2,749,000
Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value					2,649,000
Exercisable, Aggregate Intrinsic Value					1,108,000
Number of Shares [Roll Forward]
Outstanding, beginning balance (in shares)						303,980
Granted (in shares)						101,104
Vested (in shares)						0
Forfeited (in shares)						0
Outstanding, ending balance (in shares)						405,084
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding, beginning balance (in dollars per share)						$ 3.77
Granted (in dollars per share)						$ 13.86
Outstanding, ending balance (in dollars per share)						$ 6.29
Information regarding options exercised [Abstract]
Intrinsic value	15,000	15,000
Cash proceeds received	10,000	11,000
Tax benefit realized	$ 5,000	$ 0