Restricted Stock (Detail Textuals ) - shares	1 Months Ended		12 Months Ended
	Jul. 31, 2015	Jul. 31, 2012	Mar. 31, 2017	Jul. 28, 2006
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of automatic increase in the amount of shares available for issuance		10.00%
2006 Employee Equity Compensation Restricted Stock Plan (the "Employee Plan") | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance			976,878	1,000,000
2006 Outside Director Equity Compensation Restricted Stock Plan (the "Director Plan") | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance		400,000	302,000	200,000
2015 Outside Director Equity Compensation Restricted Stock Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance	400,000
Percentage of automatic increase in the amount of shares available for issuance	10.00%
2016 Outside Director Equity Compensation Restricted Stock Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance			1,000,000
Restriction period			No less than 1 year and no more than ten years