Share Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended						12 Months Ended	3 Months Ended			6 Months Ended		3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Long-term incentive plan [Member]	Jun. 30, 2013 Long-term incentive plan [Member]	Jun. 30, 2014 Long-term incentive plan [Member]	Jun. 30, 2013 Long-term incentive plan [Member]	Jun. 30, 2014 Stock Options [Member]	Jun. 30, 2014 Non-Vested Restricted Stock, Restricted Stock Units and PSU's [Member]	Jun. 30, 2014 Director [Member]	Jun. 30, 2013 Director [Member]	Dec. 31, 2013 Chief Executive Officer [Member]	Jun. 30, 2013 Senior Officers [Member] Stock Options [Member] Long-term incentive plan [Member]	Jun. 30, 2014 Non-Employee Directors [Member]	Jun. 30, 2013 Non-Employee Directors [Member]	Jun. 30, 2014 Non-Employee Directors [Member]	Jun. 30, 2013 Non-Employee Directors [Member]	Mar. 31, 2014 Officers [Member] Restricted Stock [Member] Long-term incentive plan [Member]	Jun. 30, 2013 Officers [Member] Restricted Stock [Member] Long-term incentive plan [Member]	Mar. 31, 2014 Officers [Member] Performance stock units [Member] Long-term incentive 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)																			70,000	100,000	30,000
Number of stock options issued to officers (in shares)														100,000
Vesting period														3 years					3 years	3 years	3 years
Expire period from date of grant of stock option														10 years
Shares issues as retainer fees (in shares)											7,000	34,000
Annual salary													$ 20,000
Total compensation expense (recovery) recognized					300,000	100,000	500,000	300,000							50,000	90,000	90,000	170,000
Tax benefit relating to compensation expense recognized					100,000	0	200,000	0							20,000	0	30,000	0
Total compensation cost not yet recognized	2,000,000		2,000,000
Total compensation cost not yet recognized, period for recognition			2 years 2 months 12 days
Outstanding stock option grants and transaction [Roll Forward]
Outstanding, beginning balance (in shares)									320,300
Granted (in shares)									0
Exercised (in shares)									(11,241)
Forfeited (in shares)									(4,401)
Expired (in shares)									(284)
Outstanding, ending balance (in shares)									304,374
Vested and expected to vest, period end (in shares)									296,442
Exercisable, period end (in shares)									184,525
Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning balance (in dollars per share)									$ 4.52
Exercised (in dollars per share)									$ 3.23
Forfeited (in dollars per share)									$ 5.17
Expired (in dollars per share)									$ 3.46
Outstanding, ending balance (in dollars per share)									$ 4.56
Vested and expected to vest, period end (in dollars per share)									$ 4.55
Exercisable, period end (in dollars per share)									$ 4.77
Weighted-Average Remaining Contractual Term [Abstract]
Outstanding, Weighted Average Remaining Contractual Term									7 years 7 months 6 days
Vested and Expected to Vest, Weighted-Average Remaining Contractual Term									7 years 6 months 25 days
Exercisable, Weighted Average Remaining Contractual Term									7 years 0 months 7 days
Aggregate intrinsic value [Abstract]
Outstanding, Intrinsic Value									2,610,000
Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value									2,541,000
Exercisable, Aggregate Intrinsic Value									1,576,000
Number of Shares [Roll Forward]
Outstanding, beginning balance (in shares)										303,980
Granted (in shares)										102,561
Vested (in shares)										0
Forfeited (in shares)										(1,292)
Outstanding, ending balance (in shares)										405,249
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding, beginning balance (in dollars per share)										$ 3.77
Granted (in dollars per share)										$ 13.84
Forfeited (in dollars per share)										$ 12.78
Outstanding, ending balance (in dollars per share)										$ 6.29
Information regarding options exercised [Abstract]
Intrinsic value	93,000	6,000	108,000	21,000
Cash proceeds received	26,000	2,000	36,000	13,000
Tax benefit realized	$ 32,000	$ 0	$ 37,000	$ 0