Quarterly report pursuant to Section 13 or 15(d)

Stock Transactions and Preferred Stock Dividends - Additional Information (Detail)

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Stock Transactions and Preferred Stock Dividends - Additional Information (Detail) - shares
9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Uncategorized [Abstract]    
Common stock issued for compensation or services 571,954 106,140
Common stock issued for board service 165,815 83,333
Common stock issued for services and consulting 50,000 166,666