Recently Issued Accounting Standards (Tables)

6 Months Ended

Jun. 30, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Disaggregation of Revenue

The following table disaggregates revenue by major sources (in thousands):

	THREE MONTHS ENDED				SIX MONTHS ENDED
	JUNE 30				JUNE 30
Major Goods/Service Lines	2018		2017 (1)		2018		2017(1)
Consolidated operations - long-term contracts	$	29,960	$	24,878	$	57,983	$	50,079
Royalty	3,721		3,222		6,898		6,321
Total revenues	$	33,681	$	28,100	$	64,881	$	56,400
Timing of Revenue Recognition
Goods transferred at a point in time	$	20,174	$	17,492	$	37,195	$	34,407
Services transferred over time	13,507		10,608		27,686		21,993
Total revenues	$	33,681	$	28,100	$	64,881	$	56,400

⁽¹⁾ As noted above, prior period amounts have not been adjusted under the modified retrospective method.

Contract Balances

The opening and closing balances of the Company’s current and long-term contract liability, and receivables are as follows:

	Contract balances
	Accounts Receivable		Contract liability (current)			Contract liability (long-term)
Balance, January 1, 2018	$	14,611	$	860		$	1,766
Balance, June 30, 2018	17,908		685			1,356
Increase (decrease)	$	3,297	$	(175	)	$	(410	)