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Accounting for Stock-Based Compensation (Detail Textuals) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 24, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock, amortization period       3 years  
2006 Employee Equity Compensation Restricted Stock Plan ("Employee Plan") | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted common stock, shares issued (in shares)       808,296  
2006 Outside Director Equity Compensation Restricted Stock Plan ("Director Plan") | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted common stock, shares issued (in shares)       272,000  
Employee and Director Plans | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost of non-vested restricted stock award, period of recognition       3 years  
Unrecognized compensation cost related to the non-vested restricted stock awards   $ 2,000,000 $ 2,400,000 $ 2,000,000 $ 2,400,000
Non-vested restricted stock shares outstanding   182,000 225,000 182,000 225,000
Employee and Director Plans | Restricted Stock | General and administrative expense          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation expense   $ 411,000 $ 365,000 $ 1,200,000 $ 1,100,000
2015 Outside Director Equity Compensation Restricted Stock Plan ("2015 Director Plan) | Common stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of common shares authorized to issue under the plan 400,000        
Percentage of automatic increase in the amount of shares available for issuance 10.00%