Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table sets forth the details of the Allowance for Doubtful Accounts for the three-month periods ended March 31, 2017 and 2016:

		Beginning Balance		Charge Offs		Recoveries		Change in Provision			Ending Balance
Three Months Ended March 31,
	2017	$	7,700	$	—	$	—	$	(2,700	)	$	5,000
	2016	$	17,300	$	—	$	—	$	(2,500	)	$	14,800

Schedule of Concentration of Credit Risk

For the three-month periods ended March 31, 2017 and 2016, respectively, we considered the customers listed in the following table to be our most significant customers. The table sets forth the percentage of sales attributable to each customer during the periods presented, and the respective customer’s ending accounts receivable balance as a percentage of reported accounts receivable, net, as of March 31, 2017 and 2016.

	Three Months Ended March 31, 2017			As of March 31, 2017			Three Months Ended March 31, 2016			As of March 31, 2016
Customer	Sales			Accounts Receivable			Sales			Accounts Receivable
Centric		7.2	%		26.2	%		6.4	%		10.9	%
Raytheon		10.0	%		0.0	%		5.5	%		3.4	%
Thermo Lab Systems		6.3	%		19.2	%		7.0	%		9.2	%
Uniface		4.6	%		14.5	%		3.1	%		2.0	%
Total		28.10	%		55.90	%		22.0	%		25.5	%