Related Party Transactions - Schedule of Purchases from or Operating Expenses Paid to Related Parties (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Related Party Transaction [Line Items]
Purchases from, or operating expenses paid	$ 74,000	$ 361,000	$ 272,000	$ 1,769,000
Stamax Corp. [Member]
Related Party Transaction [Line Items]
Purchases from, or operating expenses paid				9,000
Nirvana Corp [Member]
Related Party Transaction [Line Items]
Purchases from, or operating expenses paid				6,000
Smash Technologies LLC [Member]
Related Party Transaction [Line Items]
Purchases from, or operating expenses paid	$ 74,000		$ 272,000	37,000
OneClick International, LLC [Member]
Related Party Transaction [Line Items]
Purchases from, or operating expenses paid		143,000		756,000
OneClick License [Member]
Related Party Transaction [Line Items]
Purchases from, or operating expenses paid		$ 218,000		$ 961,000