Intangible and Other Assets - Additional Information (Detail) - USD ($)		3 Months Ended	12 Months Ended
	May 28, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2019
Intangible And Other Assets [Line Items]
Amortization expense for intangible assets			$ 720,000	$ 889,000
Estimated amortization expense for intangible assets for year one		$ 490,000	490,000
Estimated amortization expense for intangible assets for year two		472,000	472,000
Estimated amortization expense for intangible assets for year three		189,000	189,000
Estimated amortization expense for intangible assets for year four		148,000	148,000
Estimated amortization expense for intangible assets for year five		$ 31,000	$ 31,000
Preferred stock, share outstanding		0	0	0
Pic Onyx Inc
Intangible And Other Assets [Line Items]
Preferred stock voting percentage	22.00%
Gain (loss) recorded at inception of investment	$ 0
Impairment relating to investment		$ 4,130,000
Fair value of investment					$ 128,000
Non-cash change in property, plant and equipment and Intangible and other assets, net		3,500,000	$ 3,500,000
Non-cash change in accounts payable and intangible and other assets, net		$ 400,000	400,000
Exchange for convertible promissory note			$ 500,000
Convertible promissory note interest		7.50%	7.50%
Convertible promissory maturing date			Aug. 01, 2021
Pic Onyx Inc | Convertible Preferred Stock
Intangible And Other Assets [Line Items]
Preferred stock, share outstanding	9,700,000