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Stock Based Compensation (Narrative) (Details) (USD $)	3 Months Ended
Stock Based Compensation (Narrative) (Details) (USD $)	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of stock options	$ 480,000	$ 795,000
Maximum [Member] \| Equity Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted under plan, vesting period	5 years
Minimum [Member] \| Equity Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted under plan, vesting period	1 year
Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs related to grants of restricted stock	10,000
Independent Representatives [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs related to grants of restricted stock	30,000	20,000
Executives [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs related to grants of restricted stock		$ 30,000

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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