Equity - Summary of Stock Issuances (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued | shares	45,163
Value of Shares Issued | $	$ 291
Directors [Member] | January 1, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued | shares	4,290
Value of Shares Issued | $	$ 26
Directors [Member] | September 15, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued | shares	6,800
Value of Shares Issued | $	$ 36
Employees [Member] | January 1, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued | shares	25,920
Value of Shares Issued | $	$ 154
Employees [Member] | June 5, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued | shares	642
Value of Shares Issued | $	$ 7
Employees [Member] | September 30, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued | shares	7,511
Value of Shares Issued | $	$ 68