Preferred Stock - Additional Information (Details) - USD ($)		1 Months Ended	12 Months Ended
	Jan. 15, 2014	Sep. 30, 2010	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Series B redeemable preferred stock			$ 17,480,000	$ 16,145,000
Series A Convertible Preferred Stock
Class of Stock [Line Items]
Shares issued		48,689,555
Proceeds from issuance of stock		$ 24,300,000
Series B Redeemable Preferred Stock
Class of Stock [Line Items]
Shares issued		1,000,000
Stock Issued		$ 12,400,000
Redemption price per share (in dollars per share)		$ 12.425371
Annual dividend rate (as a percentage)			8.00%
Interest expense, other			$ 1,300,000	1,200,000	$ 1,200,000
Series B redeemable preferred stock			17,500,000	16,100,000
Dividends declared and paid			$ 0	$ 0	$ 0
Shares authorized			1,000,000	1,000,000	1,000,000
Shares Issued			1,000,000	1,000,000	1,000,000
Shares outstanding			1,000,000	1,000,000	1,000,000
Merger of VTB Holdings, Inc. and Parametric Sound Corporation | VTBH Series A Preferred Stock Converted Into Parametric Common Stock
Class of Stock [Line Items]
Shares converted	17,526,640