Organization and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Valuation and Qualifying Accounts Disclosure [Line Items]

Schedule of Drilling Long-Lived Assets, by Type [Table Text Block]

Our drilling rig fleet is 100% pad-capable and consists of the following:

	Multi-well, Pad-capable
	AC rigs	SCR rigs	Total
Domestic rigs	16	—	16
Colombia rigs	—	8	8
			24

Schedule of Production Services Long-Lived Assets, by Type [Table Text Block]

As of March 31, 2017, our production services fleets are as follows:

	550 HP	600 HP	Total
Well servicing rigs, by horsepower (HP) rating	113	12	125
	Offshore	Onshore	Total
Wireline units	6	108	114
Coiled tubing units	5	12	17

Schedule of Deferred Revenues and Costs [Table Text Block]

Our current and long-term deferred revenues and costs as ofMarch 31, 2017 and December 31, 2016were as follows (amounts in thousands):

	March 31, 2017		December 31, 2016
Current:
Deferred revenues	$	581	$	1,449
Deferred costs	984		2,290
Long-term:
Deferred revenues	$	61	$	202
Deferred costs	51		212

Unbilled Receivables [Table Text Block]

Our unbilled receivables as of March 31, 2017 and December 31, 2016were as follows (amounts in thousands):

	March 31, 2017		December 31, 2016
Daywork drilling contracts in progress	$	10,416	$	7,042
Production services	634		375
	$	11,050	$	7,417