Supplemental Financial Information (Tables)

6 Months Ended

Jun. 30, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses and Other Assets and Other assets

The following table summarizes the components of Prepaid expenses and other assets and Other long-term assets as presented in the Condensed Consolidated Balance Sheets:



	As of
(in thousands)	June 30, 2017		December 31, 2016
Prepaid expenses and other assets:
Prepaid expenses	$	1,658	$	1,169
Other	78		188
	$	1,736	$	1,357
Other long-term assets:
Deposits	$	223	$	263
Intangibles	758		696
Other	730		323
	$	1,711	$	1,282

Schedule of Other Liabilities

The following table details the components of Other current liabilities and Other long-term liabilities as presented in the Condensed Consolidated Balance Sheets:



	As of
(in thousands)	June 30, 2017		December 31, 2016
Other current liabilities:
Accrued interest	$	49	$	618
Accrued losses on equipment contracts	104		183
Taxes payable	754		244
Dividends payable	5,237		—
Deferred revenue	45		76
Warranty liabilities	601		287
Deferred rent	—		369
Asset retirement obligation	527		1,312
Other	891		928
	$	8,208	$	4,017
Other long-term liabilities:
Deferred rent	203		38
Deferred revenue, related party	2,000		2,000
Dividends payable	31		—
	$	2,234	$	2,038

Schedule of Product Warranty Liability

The changes in the carrying amount of the Company’s warranty obligations from December 31, 2016 through June 30, 2017 are as follows:



	As of
(in thousands)	June 30, 2017
Balance, beginning of period	$	287
Warranties accrued, net	580
Consumption of warranty obligations accrued	(291		)
Change in estimate related to previous warranties accrued	25
Balance, end of period	$	601

Schedule of Change in Asset Retirement Obligation

Changes in the Company's asset retirement obligations are as follows:



	As of
(in thousands)	June 30, 2017
Asset retirement obligation, beginning of period	$	1,312
Accretion	33
Liabilities settled	(19		)
Changes due to amount and timing of reclamation	(799		)
Asset retirement obligations, end of period	$	527

Schedule of Statement of Operations, Supplemental Disclosures

The following table details the components of Interest expense in the Condensed Consolidated Statements of Operations:



	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2017		2016		2017		2016
453A interest	$	566	$	354	$	1,032	$	1,145
Interest on RCM6 note payable, related party	—		—		—		263
Credit agreement interest	36		1,215		73		2,112
Other	26		4		216		17
	$	628	$	1,573	$	1,321	$	3,537

The following table details the components of the Other line item of the Condensed Consolidated Statements of Operations:



	Three Months Ended June 30,					Six Months Ended June 30,
(in thousands)	2017		2016			2017		2016
Gain on sale of equity method investment	$	—	$	—		$	—	$	2,078
Gain on settlement of note payable and licensed technology	—		151			—		1,019
Other	7		(430		)	16		(417		)
	$	7	$	(279	)	$	16	$	2,680